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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

  1. 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.

  2. 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.

  3. 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.

  4. 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

StoiBP52497600 MamoudzouMayotte

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

Every address we hold for Stoi, with the envelope wording

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.

Cancel Stoi

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

Stoi cancellation questions

Where do I send my Stoi cancellation letter?

Address the letter to Stoi, BP524, 97600 Mamoudzou, Mayotte.

Which language is my Stoi letter written in?

French. Stoi's address is in Mayotte, so the letter is prepared from the French template under the subject line “Objet : Demande d'annulation – [your name]”.

What do I need to cancel Stoi?

Have the name and email on the account and, if you have one, an account or customer number to hand. The details in the letter need to match what Stoi has on file.

Will Stoi confirm my cancellation?

The letter asks Stoi to end the account, stop further charges and confirm in writing, but a reply is not guaranteed. What you can rely on is the delivery receipt: it shows the date Stoi received the request. If a charge posts after that date, quote the receipt with your copy of the letter.