Cancel your Cham subscription by mail
To end a Cham subscription you write to them: Cham handles cancellations by post. The cancellation address on file for Cham is in Massy, France.
Let Postbye cancel Cham 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 Cham.
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- 2 Cham cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Cham by mail
Gather your account details
Cham 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.
Put the request in writing
Because Cham is dealt with in French, the letter is written in French (template fr). Subject: “Objet : Demande d'annulation – [your name]”. It requests an end to the subscription and to every further charge, plus written confirmation.
Post it with proof of delivery
Post it by certified mail to Cham in Massy, France, using the exact address below, and note the tracking number.
Keep the delivery receipt
The receipt dates your request. Look at your next statement for any Cham charge after that date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Cham cancellation letter goes
For a letter to Cham, use Rue du Saule Trapu 11, 91300 Massy, France.
Postal code 91300 places the address in Île-de-France, France.
Your name, address and email appear in a short block labelled Titulaire du compte, Adresse de facturation enregistrée and E-mail enregistré, under the greeting “À qui de droit,”.
Prefer to write it yourself? Use our letter template
Before you cancel Cham, check these
- 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.
- Check your next statement: no charge should appear after the cancellation date.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Cham 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.
Cham cancellation at a glance
- How Cham accepts cancellations
- By mailed letter
- Mailing address on file
- Cham Rue du Saule Trapu 11 91300 Massy France
- Country
- France
- Letter language
- French (template fr)
- Added to the database
- June 4, 2026
- Data last checked
