Cancel your Formula subscription by mail
To end a Formula subscription you write to them: Formula handles cancellations by post. The cancellation address on file for Formula is in London, United Kingdom.
Let Postbye cancel Formula 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 Formula.
- 4.8 from 2,931 reviews
- 3 Formula cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Formula by mail
Collect the details you need
You will need the name and email on the account and, if you have one, an account or customer number. Use exactly the details Formula holds, so the request can be matched to your account.
Set out the request
Postbye turns the request into a finished English letter headed “Subject: Cancellation Request – [your name]”: close the Formula account, stop every charge and reply in writing.
Send the letter by certified mail
Mail the letter by certified mail to the London address in the next section, and keep the tracking number.
File the delivery record
Delivery confirmation is your evidence that Formula was asked. Watch the next statement or two for any further Formula charge.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Formula cancellation letter goes
Formula lists Saint James's Market 2, SW1Y 4QU London, United Kingdom as its mailing address.
The envelope is going to London in England, United Kingdom, so the postcode SW1Y 4QU must be on the front.
Inside, the salutation reads “To Whom It May Concern,”, followed by your details under Account holder, Billing address on file and Email on file.
Prefer to write it yourself? Use our letter template
Every address we hold for Formula, with the envelope wording
Before you cancel Formula, check these
- Write well before the next billing date. A request that arrives after it can leave one more charge on your statement.
- If an app store or phone carrier bills you, the company cannot cancel it. Cancel with that partner as well.
- Cancelling usually ends access at the end of the period you paid for, so you keep what you paid for until then.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Formula 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
A subscription ends when the company records your request, not when you stop using it, and a letter is the record you can show later.
If a charge shows up after you cancelled, the letter and its receipt are what you put in front of the company or your bank.
Formula cancellation at a glance
- How Formula accepts cancellations
- By mailed letter
- Mailing address on file
- Formula Saint James's Market 2 SW1Y 4QU London United Kingdom
- Country
- United Kingdom
- Letter language
- English (template en-generic)
- Added to the database
- May 28, 2026
- Data last checked
