Cancel your Circle K Mastercard subscription by mail
To end a Circle K Mastercard subscription you write to them: Circle K Mastercard handles cancellations by post. Our database has Circle K Mastercard's mailing address in Stockholm, Sweden.
Let Postbye cancel Circle K Mastercard 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 Circle K Mastercard.
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- 3 Circle K Mastercard cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Circle K Mastercard by mail
Gather your account details
Start with the last four digits of the card, the name on the account and the address the statements are sent to, so the request to Circle K Mastercard names the right account the first time.
Write the cancellation request
The request is prepared in Swedish (template sv), under the subject line “Ämne: Begäran om uppsägning – [your name]”: end the subscription, stop all further charges and confirm in writing to you.
Send the letter by certified mail
Address the envelope to Circle K Mastercard, Stockholm, exactly as printed in the next section. Certified mail gives you a tracking number and a delivery record.
Keep the delivery receipt
Keep the tracking record with your copy of the letter. If Circle K Mastercard bills you after the date it received the request, you have the dates to point to.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Circle K Mastercard cancellation letter goes
Circle K Mastercard lists Kungsträdgårdsgatan 8, 111 47 Stockholm, Sweden as its mailing address.
The postcode 111 47 belongs to Stockholms län, Sweden, so this is where the envelope is delivered.
Your name, address and email appear in a short block labelled Kontoinnehavare, Registrerad faktureringsadress and Registrerad e-postadress, under the greeting “Till berörd part,”.
Prefer to write it yourself? Use our letter template
Every address we hold for Circle K Mastercard, with the envelope wording
Before you cancel Circle K Mastercard, check these
- Move any recurring payments and subscriptions to another card, or they may fail or reappear on a replacement card.
- Unused rewards, points or cashback can be lost when the account closes. Ask what happens to them and use them first if you can.
- Ask for written confirmation that the account is closed with a zero balance, and check your next statement.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Circle K Mastercard 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 credit card
Card issuers close accounts only once the balance is settled, and recurring payments and rewards are tied to the card, so a closure request should name the account and say what should happen to each of them.
A phone call leaves nothing behind; a letter leaves a copy, a date and a delivery receipt.
Circle K Mastercard cancellation at a glance
- How Circle K Mastercard accepts cancellations
- By mailed letter
- Mailing address on file
- Circle K Mastercard Kungsträdgårdsgatan 8 111 47 Stockholm Sweden
- Country
- Sweden
- Letter language
- Swedish (template sv)
- Category (from the company name)
- Credit cards
- Added to the database
- June 25, 2026
- Data last checked
