Cancel your Walmart Mastercard subscription by mail
To end a Walmart Mastercard subscription you write to them: Walmart Mastercard handles cancellations by post. Our database has Walmart Mastercard's mailing address in Mississauga, Canada.
Let Postbye cancel Walmart 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 Walmart Mastercard.
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- 3 Walmart 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 Walmart Mastercard by mail
Start with your account details
Put the last four digits of the card, the name on the account and the address the statements are sent to in front of you before you write: the request to Walmart Mastercard is only as good as the details it quotes.
Set out the request
Your Postbye letter to Walmart Mastercard asks for three things: the account closed, no further charges and a written confirmation, all under “Subject: Cancellation Request – [your name]”. It comes from our English template.
Post the letter
Address the envelope to Walmart Mastercard, Mississauga, exactly as printed in the next section. Certified mail gives you a tracking number and a delivery record.
File the delivery record
File the receipt with the letter. A Walmart Mastercard charge dated after delivery is the one to dispute, and these two documents are what you quote.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Walmart Mastercard cancellation letter goes
The mailing address we hold for Walmart Mastercard is Argentia Road 1940, L5N 1P9 Mississauga, Canada.
The envelope is going to Mississauga in Ontario, Canada, so the postcode L5N 1P9 must be on the front.
Your details go in a block headed by Account holder, Billing address on file and Email on file, and the opening line is “To Whom It May Concern,”.
Prefer to write it yourself? Use our letter template
Every address we hold for Walmart Mastercard, with the envelope wording
Before you cancel Walmart Mastercard, check these
- Ask for written confirmation that the account is closed with a zero balance, and check your next statement.
- Pay off the balance first. An account with money owing stays open and can keep charging interest.
- Move any recurring payments and subscriptions to another card, or they may fail or reappear on a replacement card.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Walmart 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.
Putting the request in writing means there is a date on file for when you asked, which matters if a charge appears afterwards.
Walmart Mastercard cancellation at a glance
- How Walmart Mastercard accepts cancellations
- By mailed letter
- Mailing address on file
- Walmart Mastercard Argentia Road 1940 L5N 1P9 Mississauga Canada
- Country
- Canada
- Letter language
- English (template en-generic)
- Category (from the company name)
- Credit cards
- Added to the database
- May 19, 2026
- Data last checked
