Manage Optimum

How to cancel optimum and reclaim your money

Understanding optimum and why you might want to leave

Optimum is a broadband, TV and mobile service provider operating in Australia that bundles internet speeds (300 Mbps, 500 Mbps, 1 Gbps and higher), television add-ons and mobile plans under a single account. While the service offers convenience through bundled pricing and a 60-day money-back guarantee on certain fees, many customers find themselves stuck in long-term contracts or facing unexpected charges when they try to cancel.

If you have decided to leave Optimum, you are not alone. Consumer reviews consistently highlight cancellation difficulties, ongoing billing after supposed cancellation and unclear communication about final charges. At Stopee, we have guided thousands of customers through exactly this situation, and we know the frustration you feel.

Common reasons australians cancel optimum

You might cancel Optimum because you have found a cheaper competitor, you are moving house and the service is not available at your new address, you are switching to a fibre network, or you have simply had poor customer service. Whatever your reason, understanding your cancellation rights and following the correct process protects you from lingering charges and billing disputes.

What stopee helps you avoid

Many Optimum customers make costly mistakes: they assume a verbal cancellation request counts as official notice, they fail to return equipment and incur surprise fees, or they do not challenge charges that appear after their cancellation date. Stopee is here to walk you through every step so you cancel cleanly and keep proof of everything.

Your consumer rights under australian law

As an Australian consumer, you have statutory protections that apply even if Optimum's terms of service say otherwise.

The australian consumer law and your cancellation rights

Under the Australian Consumer Law (ACL), which is enforced by the Australian Competition and Consumer Commission (ACCC), you have the right to cancel a service contract within a cooling-off period if you entered the contract at a distance (for example, online or by phone). This cooling-off period is typically 10 business days from the date you sign the contract or receive your first bill.

If Optimum fails to provide the service you contracted for, performs it poorly, or charges you fees that are unjust or unconscionable, the ACL gives you the right to cancel and claim a refund. You do not need to wait until your contract ends.

Optimum's 60-day money-back guarantee

Optimum advertises a 60-day money-back guarantee on certain service fees (internet monthly fee, mobile monthly service and activation fees). This is more generous than the ACL's 10-business-day cooling-off period, so use it if you are within 60 days of your sign-up date. This guarantee is a contractual promise, not a statutory right, but it binds Optimum all the same.

Refunds under this guarantee are issued to your original payment method or applied as a bill credit, depending on your account balance. Do not assume Optimum will offer a refund automatically; you must request it in writing and provide proof that you are within the 60-day window.

What the ACCC can do if optimum refuses

If Optimum disputes your cancellation claim or refuses to refund you, you can lodge a complaint with the ACCC. The ACCC investigates breaches of the ACL and can force Optimum to honour your rights. Keep all documentation (emails, account statements, contract terms) so you can support your complaint if needed.

Methods to cancel optimum

Optimum offers several cancellation channels, but not all are equally reliable or documented.

Cancellation by written post (the safest method)

Optimum's stated cancellation process is to send a letter to their legal headquarters. This method creates a paper trail and is your strongest evidence if a dispute arises later.

Pro tip: Sending your cancellation letter by registered post or tracked mail proves that Optimum received it. Do not use regular mail unless you have no other option; the cost of tracked mail (typically under AUD $15) is worth the protection.

Cancellation by phone

You can call Optimum's customer service team to request cancellation by phone. However, this method has a major drawback: you have no written proof that the call occurred or what you said. If Optimum continues to bill you and claims they never received a cancellation request, you will struggle to prove otherwise.

Warning: If you do cancel by phone, ask the agent to send you a written cancellation confirmation email immediately. If they refuse or the email never arrives, follow up with a written cancellation letter by post the same day.

Cancellation by email

Some Optimum customers report success emailing a cancellation request to customer support. Email is better than a phone call because it creates a timestamped record, but it is weaker than registered post. Email addresses change, messages can be missed or marked as spam, and Optimum can claim they never received your request.

Pro tip: If you email your cancellation request, send it to multiple addresses (customer service, billing, and the legal address if available) and request a read receipt. Keep copies of the email in your personal records.

How to cancel optimum by registered post (step-by-step)

This is the most reliable method and the one Stopee recommends because it gives you the strongest legal position.

1. Gather your account information
   • Locate your most recent Optimum bill or account statement
   • Write down your account name, customer account number, and the service address
   • Note your current billing cycle start and end dates
2. Draft your cancellation letter
   • Address it to: Optimum, 26-32 Pyrmont Bridge Road, Pyrmont NSW 2009, Australia
   • Begin with "To whom it may concern" or "Optimum Customer Service"
   • State clearly: "I request to cancel my Optimum service effective immediately" (or state a specific date if you prefer)
   • Include your full name, account number, current service address and phone number
   • Request written confirmation of cancellation by return post or email
   • Sign and date the letter
   • Keep a photocopy for your records before posting
3. Send the letter by registered post
   • Visit Australia Post or use their online portal to arrange registered mail
   • Pay the small tracking fee (usually under AUD $15)
   • Request a delivery confirmation receipt when the letter arrives
   • Keep this receipt in your cancellation file
4. Wait for written confirmation
   • Allow 5-7 business days for your letter to arrive
   • Allow a further 7-10 business days for Optimum to respond with a confirmation
   • If you do not receive confirmation within 14 days of posting, call Optimum and quote your registered post tracking number
5. Arrange equipment return
   • Contact Optimum to ask how and where to return your modem, router, or TV box
   • Some providers collect equipment; others ask you to mail it back
   • If you mail the equipment, use tracked mail and keep the receipt
   • Request written confirmation that Optimum has received and inspected your equipment
6. Monitor your final bill
   • Check your next statement after the cancellation date
   • Verify that all charges have stopped and no new charges appear
   • If you see unexpected charges, contact Optimum in writing within 21 days and dispute them

Understanding optimum's cancellation timeline and final billing

Optimum's terms state that cancellation typically takes effect at the end of your current billing period, not on the date you request it.

When your cancellation actually takes effect

If you are midway through your monthly billing cycle when you request cancellation, Optimum will continue to charge you until the end of that cycle. For example, if your billing cycle runs from the 15th of each month and you cancel on the 20th, you will be charged until the 14th of the following month.

This means you should expect a final bill after your cancellation date. Review this bill carefully to ensure you are only charged for service up to your cancellation date and that no contract termination fees or early exit fees have been added.

Contract termination fees and early exit charges

If you cancel before your contract term ends, Optimum may attempt to charge you an early termination fee. However, under the ACL, a termination fee must be genuine and proportionate; it cannot be a penalty disguised as a fee. If the fee seems excessive compared to Optimum's actual loss, you can challenge it with the ACCC.

Pro tip: Check your original contract to see what termination fee (if any) is stated. If Optimum charges a different amount, dispute it immediately.

Equipment and buyout credit charges

Optimum's terms include gateway, modem and equipment monthly fees, and some accounts may include device financing for equipment you did not return. When you cancel, you will be liable for any unreturned equipment and any outstanding equipment finance balance.

However, if you return equipment and Optimum charges you again for it, or if the charges appear on your final bill without justification, you can dispute these charges in writing.

Refunds and credits: what you can claim

You are entitled to a refund or credit for service charges you paid but did not receive.

The 60-day money-back guarantee

If you are within 60 days of your Optimum sign-up date and you notify Optimum within that window, you can claim a refund on your internet monthly fee, mobile monthly service fee and activation fees. The refund will be issued to your original payment method or applied as a bill credit.

To claim this guarantee, send a written request (by post or email) stating that you wish to activate the 60-day money-back guarantee, provide your sign-up date, and request the refund be processed within 14 days.

Refunds under the australian consumer law

If Optimum has breached the ACL (for example, by providing poor service, misrepresenting the service, or charging unconscionable fees), you can claim a refund that is proportionate to the breach. This refund is separate from Optimum's money-back guarantee and applies regardless of how long you have been a customer.

For example, if you paid AUD $60 per month for internet but the service was consistently slower than advertised, or if Optimum charged you for equipment you returned, you can claim a refund for the affected period.

Proration and final billing adjustments

If you cancel mid-cycle, Optimum should prorate your final monthly charge so you only pay for the days you used the service. For example, if your monthly fee is AUD $60 and you cancel after 10 days of a 30-day cycle, your final charge should be approximately AUD $20.

Check your final bill to confirm it has been prorated correctly. If it has not, contact Optimum in writing and request an adjustment.

What to do after you cancel optimum

Cancellation does not end the day you send your letter; you must actively monitor your account and billing to ensure Optimum stops charging you.

Monitor your account for at least two billing cycles

After your cancellation date, keep checking your email and postal mail for account statements. Watch for any unexpected charges that appear after you have supposedly cancelled. If you see charges after your cancellation date, Optimum has either failed to process your cancellation or is charging you in error.

Contact Optimum immediately and point to your registered post receipt or cancellation confirmation letter. Demand they reverse the charges. If they refuse, file a dispute with your bank or credit card provider within 21 days of the unauthorized charge.

Keep all documentation for 12 months

Preserve every piece of correspondence related to your Optimum account: your cancellation letter, the registered post receipt, any confirmation Optimum sends you, your final bill, and any related emails. Store these safely (physical copies and digital backups) for at least 12 months. If a billing dispute arises later, you will need this evidence.

Follow up if you do not receive confirmation

If Optimum does not send you written cancellation confirmation within 14 days, send a follow-up letter (again by registered post) demanding confirmation. Quote your original post tracking number and state that you expect confirmation within 7 days or you will escalate the matter to the ACCC.

Escalate to the ACCC if optimum refuses to honour your cancellation

If Optimum continues to bill you after you have requested cancellation, or if they refuse to refund you or acknowledge your cancellation, lodge a complaint with the ACCC. Provide your registered post receipt, any correspondence from Optimum, and your billing statements showing unauthorized charges. The ACCC can compel Optimum to refund you and pay penalties for breaching the ACL.

Common mistakes when cancelling optimum

We understand that cancelling a service provider feels stressful, especially when you are unsure whether the company is treating you fairly. Here are the pitfalls that trip up the most customers.

Assuming a phone call counts as official cancellation

This is the costliest mistake. You call, speak to an agent, request cancellation, and believe the job is done. Weeks later, you receive another bill. You call again, and the company claims they have no record of your earlier request. Without a written confirmation, you have no proof.

Always request written confirmation by email or follow up with a registered post letter the same day. Do not rely on phone calls alone.

Failing to return equipment on time

Many customers cancel but forget to return their Optimum-provided modem or TV box. Optimum then charges them for unreturned equipment on their final bill, sometimes hundreds of dollars. If you dispute this charge, Optimum will ask for proof you returned the equipment.

Pro tip: Return your equipment promptly by tracked mail and keep the delivery receipt. Request written confirmation from Optimum that they have received and inspected your equipment.

Not checking your final bill

Your cancellation is not truly complete until your final bill arrives and you have verified it. Some customers assume they are finished once they send their cancellation letter, then ignore the final bill when it arrives. By the time they notice unexpected charges, weeks have passed and disputing them becomes harder.

Mark your calendar to check for your final bill 30-40 days after your cancellation date. Review every line and query anything that seems wrong.

Ignoring the 60-day money-back guarantee window

If you signed up for Optimum recently and you are unhappy, you have a generous 60-day money-back guarantee. Many customers do not realize this and struggle to cancel at regular rates when they could have claimed a full refund. Check your sign-up date and use the guarantee if you are still within the window.

Letting unauthorized charges pass

If Optimum charges you after your cancellation date, do not assume it is a mistake that will sort itself out. Contact them in writing within 21 days and formally dispute the charge. If they do not reverse it, escalate to your bank or the ACCC. The longer you wait, the harder it is to recover your money.

Documentation checklist for your cancellation

Use this checklist before, during and after you cancel so you have all the evidence you need if a dispute arises.

Optimum pricing and service overview

Understanding what you are paying for and what it costs helps you assess whether cancellation is the right choice and supports refund claims if Optimum has overcharged you.

Real customer experiences cancelling optimum

Consumer reviews paint a clear picture of what to expect when you cancel Optimum.

What customers report

Across review platforms and consumer forums, Optimum cancellation complaints cluster around a few key themes. Many customers say they requested cancellation verbally, then continued to receive bills with no written acknowledgement of their request. Others report that equipment charges appeared on final bills even though they returned their modem or router. A subset of customers complain about lengthy retention calls where Optimum representatives offered discounts instead of honouring their cancellation request.

Positive cancellation experiences

Customers who report smooth cancellations typically share a common pattern: they sent their cancellation request in writing (by post or email), they received a written confirmation from Optimum, they returned equipment by tracked mail with a receipt, and they monitored their final bill. These customers had evidence and documentation, so disputes were resolved quickly.

Lessons from customer feedback

The overarching lesson is this: Optimum processes and honours written cancellation requests far more reliably than verbal ones. The companies that cause the most grief are those where cancellation is verbal-only; customers without written proof suffer the longest disputes. At Stopee, we have helped thousands of consumers cancel services like Optimum by insisting on written documentation at every stage. This approach protects you.

When to cancel optimum: scenarios and trade-offs

Deciding whether to cancel requires you to weigh your situation against your contract terms and financial obligations.

Scenarios where you should cancel immediately

Cancel now if Optimum has breached your contract (consistent slow internet, service outages not resolved, overcharging), if you have moved and Optimum is not available at your new address, if you have found a significantly cheaper competitor and your contract term has ended, or if you are within the 60-day money-back guarantee window and you are unhappy with the service. In these cases, the sooner you cancel, the sooner you stop paying for service you do not value.

Scenarios where you should wait

If you are locked into a long-term contract (24 months) and you still have 18 months remaining, cancelling now will trigger a substantial early termination fee that may negate any savings from switching. In this case, wait until your contract approaches its end date unless the early termination fee is lower than the difference between your current plan and a competitor's plan for the remaining term.

Calculate the math: (early termination fee) + (remaining months at current price) versus (remaining months at competitor price). If the competitor is cheaper overall, cancel now. If the math is close, wait.

Optimum cancellation address and final steps

Send your formal written cancellation request to this address by registered post.

Official optimum legal address

Optimum
26-32 Pyrmont Bridge Road
Pyrmont NSW 2009
Australia

Your final checklist before submitting

Before you post your cancellation letter, ensure you have completed these steps. First, photocopy your cancellation letter and keep it in a safe place. Second, arrange registered post through Australia Post and pay the tracking fee. Third, include your account number, full name, current service address and phone number in the letter so Optimum can identify your account instantly. Fourth, state your cancellation date clearly and request written confirmation. Fifth, mail the letter and retain the registered post receipt and tracking number.

After you post, set a reminder to follow up with Optimum if you do not receive confirmation within 14 days. Monitor your account and billing for two full billing cycles after your cancellation date. If any unexpected charges appear, dispute them in writing within 21 days.

Stopee's parting advice

Cancelling Optimum is a straightforward process if you follow the steps in this guide and document everything. Do not allow fear of contract terms or frustration with customer service to paralyse you. You have rights under the Australian Consumer Law, and Stopee is here to remind you of them. Whether you are within the 60-day money-back guarantee or cancelling a long-term contract, send your cancellation by registered post, keep your receipt, and follow up in writing. Stopee has helped thousands of consumers cancel subscriptions and services like Optimum without losing money to hidden fees or unauthorized charges. You can do this too. Start today, stay organized, and reclaim your power as a consumer.