Cancel your Stoi subscription by mail
Cancelling Stoi means putting it in writing; the company takes requests by mailed letter, and a tracked one leaves a clear record. Post for Stoi is handled in Mamoudzou, Mayotte, which is where your letter is headed.
Let Postbye cancel Stoi 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 Stoi.
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- 2 Stoi cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Stoi by mail
Start with your account details
Stoi will look your account up from what the letter says, so check the name and email on the account and, if you have one, an account or customer number first.
Draft the request
The request is prepared in French (template fr), under the subject line “Objet : Demande d'annulation – [your name]”: end the subscription, stop all further charges and confirm in writing to you.
Mail the letter with a receipt
Post it by certified mail to Stoi in Mamoudzou, Mayotte, using the exact address below, and note the tracking number.
Hold on to the receipt
Once the letter is delivered, the date on the receipt is the date Stoi was told. Compare it with your statements over the next billing cycle.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Stoi cancellation letter goes
The mailing address we hold for Stoi is BP524, 97600 Mamoudzou, Mayotte.
The envelope is going to Mamoudzou in Mamoudzou-3, Mayotte, so the postcode 97600 must be on the front.
The letter greets the reader with “À qui de droit,”; your own details sit under the labels Titulaire du compte, Adresse de facturation enregistrée and E-mail enregistré.
Prefer to write it yourself? Use our letter template
Before you cancel Stoi, 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 Stoi 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 phone call leaves nothing behind; a letter leaves a copy, a date and a delivery receipt.
Stoi cancellation at a glance
- How Stoi accepts cancellations
- By mailed letter
- Mailing address on file
- Stoi BP524 97600 Mamoudzou Mayotte
- Country
- Mayotte
- Letter language
- French (template fr)
- Added to the database
- June 4, 2026
- Data last checked