Cancel your Flagship CrossFit subscription by mail
Flagship CrossFit takes cancellation requests by mailed letter, so a dated certified-mail letter is the record that counts. Flagship CrossFit receives written requests in San Francisco, United States.
Let Postbye cancel Flagship CrossFit 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 Flagship CrossFit.
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- 2 Flagship CrossFit cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Flagship CrossFit by mail
Get your account details together
Check your membership number, the home club you joined at and the name on the membership agreement before anything else. A request that does not match the account on file at Flagship CrossFit is the easiest one to set aside.
Set out the request
Your Postbye letter to Flagship CrossFit asks for three things: the account closed, no further charges and a written confirmation, all under “Subject: Subscription termination – Flagship CrossFit”. It comes from our English template.
Mail the letter with a receipt
Send the letter to the San Francisco mailing address shown below by certified mail. Keep the tracking number safe.
Hold on to the receipt
The receipt dates your request. Look at your next statement for any Flagship CrossFit charge after that date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Flagship CrossFit cancellation letter goes
Written requests to Flagship CrossFit go to 201 King St., San Francisco, CA 94107.
San Francisco, California 94107 is a United States address, so ordinary certified mail reaches it.
The letter is addressed “To Whom It May Concern,” and its details block uses the labels Name, Address and E-mail.
Prefer to write it yourself? Use our letter template
Every address we hold for Flagship CrossFit, with the envelope wording
Before you cancel Flagship CrossFit, check these
- A home club can have its own rules. Name the club in the letter so the request is not bounced between locations.
- Freezing or pausing a membership is not cancelling it. Say clearly that you want the membership ended.
- Read the notice window in your agreement. A letter that arrives after the cut-off can miss that month's charge.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Flagship CrossFit 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 gym or fitness membership
Gyms often require written notice, set a notice window before the next billing date and can tie the cancellation to the home club, so a dated letter is the record that counts.
Putting the request in writing means there is a date on file for when you asked, which matters if a charge appears afterwards.
Flagship CrossFit cancellation at a glance
- How Flagship CrossFit accepts cancellations
- By mailed letter
- Mailing address on file
- Flagship CrossFit 201 King St. San Francisco, CA 94107
- Country
- United States
- Letter language
- English (template en)
- Category (from the company name)
- Gyms & fitness
- Added to the database
- April 30, 2026
- Data last checked
