Cancel your Sepsad subscription by mail
Sepsad deals with cancellations through the post, so the request goes in a letter and the certified-mail receipt is your proof of when. The cancellation address on file for Sepsad is in Lille, France.
Let Postbye cancel Sepsad 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 Sepsad.
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- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Sepsad by mail
Start with your account details
Put the name and email on the account and, if you have one, an account or customer number in front of you before you write: the request to Sepsad is only as good as the details it quotes.
Write the cancellation request
Sepsad 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.
Send it by certified mail
Address the envelope to Sepsad, Lille, exactly as printed in the next section. Certified mail gives you a tracking number and a delivery record.
Keep the proof of delivery
Delivery confirmation is your evidence that Sepsad was asked. Watch the next statement or two for any further Sepsad charge.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Sepsad cancellation letter goes
Sepsad lists TSA 62120, 59887 Lille, France as its mailing address.
“TSA 62120” is a post-office box or mail-sorting line, so it takes post and not couriers: certified mail is the right way to reach it.
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
Before you cancel Sepsad, 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 Sepsad 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.
Putting the request in writing means there is a date on file for when you asked, which matters if a charge appears afterwards.
Sepsad cancellation at a glance
- How Sepsad accepts cancellations
- By mailed letter
- Mailing address on file
- Sepsad TSA 62120 59887 Lille France
- Country
- France
- Letter language
- French (template fr)
- Added to the database
- June 4, 2026
- Data last checked
