Cancel your Auxia subscription by mail
Auxia deals with cancellations through the post, so the request goes in a letter and the certified-mail receipt is your proof of when. Our database has Auxia's mailing address in Saint Quentin Yvelines, France.
Let Postbye cancel Auxia 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 Auxia.
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- 3 Auxia cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Auxia by mail
Get your account details together
You will need the name and email on the account and, if you have one, an account or customer number. Use exactly the details Auxia holds, so the request can be matched to your account.
Put the request in writing
Postbye drafts the request in French, the language of France, with “Objet : Demande d'annulation – [your name]” as the subject line. It asks Auxia to close the subscription, stop billing and confirm in writing.
Mail the letter with a receipt
Mail the letter by certified mail to the Saint Quentin Yvelines address in the next section, and keep the tracking number.
Keep proof the letter arrived
The receipt dates your request. Look at your next statement for any Auxia charge after that date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Auxia cancellation letter goes
For a letter to Auxia, use TSA 10001, 78075 Saint Quentin Yvelines, France.
“TSA 10001” 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.
Your details go in a block headed by Titulaire du compte, Adresse de facturation enregistrée and E-mail enregistré, and the opening line is “À qui de droit,”.
Prefer to write it yourself? Use our letter template
Before you cancel Auxia, check these
- 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.
- Use the same name and email as on the account. A mismatch can delay the request.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Auxia 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
A subscription ends when the company records your request, not when you stop using it, and a letter is the record you can show later.
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.
Auxia cancellation at a glance
- How Auxia accepts cancellations
- By mailed letter
- Mailing address on file
- Auxia TSA 10001 78075 Saint Quentin Yvelines France
- Country
- France
- Letter language
- French (template fr)
- Added to the database
- June 4, 2026
- Data last checked
