Cancel your Founders Card subscription by mail
Founders Card takes cancellation requests by mailed letter, so a dated certified-mail letter is the record that counts. Letters to Founders Card go to Austin, United States.
Let Postbye cancel Founders Card 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 Founders Card.
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- 2 Founders Card cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Founders Card by mail
Start with 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 Founders Card has on file.
Write the cancellation request
Postbye turns the request into a finished English letter headed “Subject: Subscription termination – Founders Card”: close the Founders Card account, stop every charge and reply in writing.
Send the letter by certified mail
Send it certified to Austin, United States, copying the address from the next section letter for letter, and keep the receipt slip.
File the delivery record
It shows the date Founders Card received your letter. Check your next statement: no Founders Card charge should post after the cancellation date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Founders Card cancellation letter goes
For a letter to Founders Card, use 111 Congress Avenue, Suite 500, Austin, TX 78701.
With ZIP 78701, the address sits in Texas and the letter never leaves the United States postal system.
The letter greets the reader with “To Whom It May Concern,”; your own details sit under the labels Name, Address and E-mail.
Prefer to write it yourself? Use our letter template
Every address we hold for Founders Card, with the envelope wording
Before you cancel Founders Card, check these
- 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.
- Look for annual or multi-month plans. A plan paid in advance usually runs to the end of the period you paid for.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Founders Card 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
Subscriptions renew automatically, and a written request is the clearest record that you asked to stop it before the next billing date.
A letter is the formal route: it states the request in writing, carries a date and, sent by certified mail, comes with proof of delivery.
Founders Card cancellation at a glance
- How Founders Card accepts cancellations
- By mailed letter
- Mailing address on file
- Founders Card 111 Congress Avenue Suite 500 Austin, TX 78701
- Country
- United States
- Letter language
- English (template en)
- Added to the database
- April 30, 2026
- Data last checked
