Cancel your Octopus Energy subscription by mail
Octopus Energy takes cancellation requests by mailed letter, so a dated certified-mail letter is the record that counts. Letters to Octopus Energy go to London, United Kingdom.
Let Postbye cancel Octopus Energy for you
We write your letter, mail it by certified mail the next business day, and confirm when the cancellation went through. You keep the signed proof.
Money-back guarantee within 10 business days.
Postbye is not affiliated with Octopus Energy.
- 4.8 from 2,931 reviews
- 3 Octopus Energy cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Octopus Energy by mail
Gather your account details
Have the name and email on the account and, if you have one, an account or customer number to hand. The details in the letter need to match what Octopus Energy has on file.
Put the request in writing
Ask Octopus Energy to cancel the account, stop all further charges and confirm in writing. Postbye prepares the letter from our English template, with the subject line “Subject: Cancellation Request – [your name]”.
Mail it with tracking
Use certified mail for the EC1N 2HT London address in the next section, so the post office records the delivery. Write down the tracking number.
Keep the delivery receipt
It shows the date Octopus Energy received your letter. Check your next statement: no Octopus Energy charge should post after the cancellation date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Octopus Energy cancellation letter goes
The mailing address we hold for Octopus Energy is 33 Holborn, EC1N 2HT London, United Kingdom.
The envelope is going to London, United Kingdom, so the postcode EC1N 2HT must be on the front.
The database also lists Via dei Gorghi 9, 63100 Ascoli Piceno, Italy for Octopus Energy. Use the first address above unless your agreement names this one.
Your name, address and email appear in a short block labelled Account holder, Billing address on file and Email on file, under the greeting “To Whom It May Concern,”.
Prefer to write it yourself? Use our letter template
Every address we hold for Octopus Energy, with the envelope wording
Before you cancel Octopus Energy, check these
- Cancelling usually ends access at the end of the period you paid for, so you keep what you paid for until then.
- Use the same name and email as on the account. A mismatch can delay the request.
- Check your next statement: no charge should appear after the cancellation date.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Octopus Energy for you
We write your letter, mail it by certified mail the next business day, and confirm when the cancellation went through. You keep the signed proof.
How cancelling by mail works
Most subscriptions keep billing until someone tells the company to stop, and a dated letter is proof that somebody did.
A phone call leaves nothing behind; a letter leaves a copy, a date and a delivery receipt.
Octopus Energy cancellation at a glance
- How Octopus Energy accepts cancellations
- By mailed letter
- Mailing address on file
- Octopus Energy 33 Holborn EC1N 2HT London United Kingdom
- Second address on file
- Octopus Energy Via dei Gorghi 9 63100 Ascoli Piceno Italy
- Country
- United Kingdom
- Letter language
- English (template en-generic)
- Added to the database
- May 7, 2026
- Data last checked
