Cancel your Cyberwatch subscription by mail
Cyberwatch takes cancellation requests by mailed letter, so a dated certified-mail letter is the record that counts. Letters to Cyberwatch go to Paris, France.
Let Postbye cancel Cyberwatch 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 Cyberwatch.
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- 2 Cyberwatch cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Cyberwatch by mail
Get your account details together
Check the name and email on the account and, if you have one, an account or customer number before anything else. A request that does not match the account on file at Cyberwatch is the easiest one to set aside.
Prepare the letter
Postbye drafts the request in French, the language of France, with “Objet : Demande d'annulation – [your name]” as the subject line. It asks Cyberwatch to close the subscription, stop billing and confirm in writing.
Mail it with tracking
Take the letter to the post office and ask for certified delivery to 75008 Paris. Keep the tracking number it gives you.
Keep the proof of delivery
Delivery confirmation is your evidence that Cyberwatch was asked. Watch the next statement or two for any further Cyberwatch charge.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Cyberwatch cancellation letter goes
Cyberwatch takes its post at Rue de Penthièvre 10, 75008 Paris, France, which is where a cancellation letter belongs.
The envelope is going to Paris in Île-de-France, France, so the postcode 75008 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 Cyberwatch, with the envelope wording
Before you cancel Cyberwatch, 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 Cyberwatch 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
Subscriptions renew automatically, and a written request is the clearest record that you asked to stop it before the next billing date.
Putting the request in writing means there is a date on file for when you asked, which matters if a charge appears afterwards.
Cyberwatch cancellation at a glance
- How Cyberwatch accepts cancellations
- By mailed letter
- Mailing address on file
- Cyberwatch Rue de Penthièvre 10 75008 Paris France
- Country
- France
- Letter language
- French (template fr)
- Added to the database
- June 4, 2026
- Data last checked
