Cancel your Macmillan Cancer Support subscription by mail
To end a Macmillan Cancer Support subscription you write to them: Macmillan Cancer Support handles cancellations by post. The cancellation address on file for Macmillan Cancer Support is in London, United Kingdom.
Let Postbye cancel Macmillan Cancer Support 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.
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Postbye is not affiliated with Macmillan Cancer Support.
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- 3 Macmillan Cancer Support cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Macmillan Cancer Support by mail
Start with your account details
Macmillan Cancer Support will look your account up from what the letter says, so check your donor or supporter number, the name on the donation and the amount and date of the latest payment first.
Prepare the letter
The letter asks Macmillan Cancer Support to end the account, stop every future charge and confirm it in writing, under the subject line “Subject: Cancellation Request – [your name]”. Postbye fills it in from our English template.
Send the letter by certified mail
Address the envelope to Macmillan Cancer Support, London, exactly as printed in the next section. Certified mail gives you a tracking number and a delivery record.
Hold on to the receipt
The receipt dates your request. Look at your next statement for any Macmillan Cancer Support charge after that date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Macmillan Cancer Support cancellation letter goes
The mailing address we hold for Macmillan Cancer Support is 89 Albert Embankment, SE1 7TP London, United Kingdom.
The envelope is going to London, United Kingdom, so the postcode SE1 7TP must be on the front.
The letter is addressed “To Whom It May Concern,” and its details block uses the labels Account holder, Billing address on file and Email on file.
Prefer to write it yourself? Use our letter template
Every address we hold for Macmillan Cancer Support, with the envelope wording
Before you cancel Macmillan Cancer Support, check these
- Ask the organisation to confirm the end date in writing.
- Quote your donor or supporter number so the right gift is stopped.
- A direct debit can also be ended with your bank. Do both if you want to be sure.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Macmillan Cancer Support 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.
Cancelling a regular donation
Regular donations run until the donor ends them, so a written request should give the donor reference and ask the charity to stop the payment and confirm the end date.
A phone call leaves nothing behind; a letter leaves a copy, a date and a delivery receipt.
Start on macmillan.org.uk: the account area there shows who actually bills you, which decides who the request must reach.
Macmillan Cancer Support cancellation at a glance
- How Macmillan Cancer Support accepts cancellations
- By mailed letter
- Mailing address on file
- Macmillan Cancer Support 89 Albert Embankment SE1 7TP London United Kingdom
- Country
- United Kingdom
- Letter language
- English (template en-generic)
- Website
- macmillan.org.uk
- Category (from the company name)
- Charities & donations
- Added to the database
- May 7, 2026
- Data last checked
