Cancel your Decathlon subscription by mail
Decathlon accepts written cancellation requests by post, which makes certified mail the strongest proof that you asked. Our database has Decathlon's mailing address in Villeneuve-d'Ascq, France.
Let Postbye cancel Decathlon 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 Decathlon.
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- 3 Decathlon cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Decathlon by mail
Note your account details
Before writing, collect the name and email on the account and, if you have one, an account or customer number. Decathlon can only act on a request it can match to an account.
Prepare the letter
Decathlon is based in France, so the letter goes out in French, built from our French template. Subject line: “Objet : Demande d'annulation – [your name]”. It asks for the subscription to end, for further charges to stop and for written confirmation.
Post the letter
Post it by certified mail to Decathlon in Villeneuve-d'Ascq, France, using the exact address below, and note the tracking number.
File the delivery record
Delivery confirmation is your evidence that Decathlon was asked. Watch the next statement or two for any further Decathlon charge.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Decathlon cancellation letter goes
For a letter to Decathlon, use Boulevard de Mons 4, 59650 Villeneuve-d'Ascq, France.
Villeneuve-d'Ascq is in Nord, France; the postal code to quote is 59650.
The database also lists BP 50075, 77210 Avon, France for Decathlon. Use the first address above unless your agreement names this one.
Inside, the salutation reads “À qui de droit,”, followed by your details under Titulaire du compte, Adresse de facturation enregistrée and E-mail enregistré.
Prefer to write it yourself? Use our letter template
Every address we hold for Decathlon, with the envelope wording
Before you cancel Decathlon, check these
- Write well before the next billing date. A request that arrives after it can leave one more charge on your statement.
- If an app store or phone carrier bills you, the company cannot cancel it. Cancel with that partner as well.
- Cancelling usually ends access at the end of the period you paid for, so you keep what you paid for until then.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Decathlon 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
Most subscriptions keep billing until someone tells the company to stop, and a dated letter is proof that somebody did.
A mailed letter is slower than a phone call but it is the version that proves what you asked for and when.
Decathlon cancellation at a glance
- How Decathlon accepts cancellations
- By mailed letter
- Mailing address on file
- Decathlon Boulevard de Mons 4 59650 Villeneuve-d'Ascq France
- Second address on file
- Decathlon BP 50075 77210 Avon France
- Country
- France
- Letter language
- French (template fr)
- Added to the database
- May 6, 2026
- Data last checked
