Cancel your B First Fit subscription by mail
B First Fit accepts written cancellation requests by post, which makes certified mail the strongest proof that you asked. Our database has B First Fit's mailing address in Siegburg, Germany.
Let Postbye cancel B First Fit 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 B First Fit.
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- 2 B First Fit cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel B First Fit by mail
Find your account details
Before writing, collect your membership number, the home club you joined at and the name on the membership agreement. B First Fit can only act on a request it can match to an account.
Write the cancellation request
Because B First Fit is dealt with in German, the letter is written in German (template de). Subject: “Betreff: Kündigungsanfrage – [your name]”. It requests an end to the subscription and to every further charge, plus written confirmation.
Post it with proof of delivery
Mail the letter by certified mail to the Siegburg address in the next section, and keep the tracking number.
Hold on to the receipt
It shows the date B First Fit received your letter. Check your next statement: no B First Fit charge should post after the cancellation date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your B First Fit cancellation letter goes
B First Fit takes its post at Zeithstraße 444, 53721 Siegburg, Germany, which is where a cancellation letter belongs.
The envelope is going to Siegburg in Nordrhein-Westfalen, Germany, so the postcode 53721 must be on the front.
The letter is addressed “Sehr geehrte Damen und Herren,” and its details block uses the labels Kontoinhaber, Hinterlegte Rechnungsadresse and Hinterlegte E-Mail-Adresse.
Prefer to write it yourself? Use our letter template
Every address we hold for B First Fit, with the envelope wording
Before you cancel B First Fit, 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 B First Fit 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.
A phone call leaves nothing behind; a letter leaves a copy, a date and a delivery receipt.
B First Fit cancellation at a glance
- How B First Fit accepts cancellations
- By mailed letter
- Mailing address on file
- B First Fit Zeithstraße 444 53721 Siegburg Germany
- Country
- Germany
- Letter language
- German (template de)
- Category (from the company name)
- Gyms & fitness
- Added to the database
- May 19, 2026
- Data last checked
