Cancel your Sonyone subscription by mail
To end a Sonyone subscription you write to them: Sonyone handles cancellations by post. Our database has Sonyone's mailing address in Ciudad de México, Mexico.
Let Postbye cancel Sonyone 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 Sonyone.
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- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Sonyone by mail
Get your account details together
Sonyone 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 Sonyone is dealt with in Latin American Spanish, the letter is written in Latin American Spanish (template es-419). Subject: “Asunto: Solicitud de cancelación – [your name]”. It requests an end to the subscription and to every further charge, plus written confirmation.
Post the letter
Mail the letter by certified mail to the Ciudad de México address in the next section, and keep the tracking number.
Keep the delivery receipt
Once the letter is delivered, the date on the receipt is the date Sonyone 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 Sonyone cancellation letter goes
Written requests to Sonyone go to Prolongación Paseo de la Reforma 600, 01210 Ciudad de México, Mexico.
Postal code 01210 places the address in Colonia Santa Fe, Mexico.
The letter is addressed “A quien corresponda:” and its details block uses the labels Titular de la cuenta, Dirección de facturación registrada and Correo electrónico registrado.
Prefer to write it yourself? Use our letter template
Every address we hold for Sonyone, with the envelope wording
Before you cancel Sonyone, check these
- 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.
- Look for annual or multi-month plans. A plan paid in advance usually runs to the end of the period you paid for.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Sonyone 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.
If a charge shows up after you cancelled, the letter and its receipt are what you put in front of the company or your bank.
Sonyone cancellation at a glance
- How Sonyone accepts cancellations
- By mailed letter
- Mailing address on file
- Sonyone Prolongación Paseo de la Reforma 600 01210 Ciudad de México Mexico
- Country
- Mexico
- Letter language
- Latin American Spanish (template es-419)
- Added to the database
- July 2, 2026
- Data last checked
