Cancel your Aserta subscription by mail
Aserta takes cancellation requests by mailed letter, so a dated certified-mail letter is the record that counts. Post for Aserta is handled in Madrid, Spain, which is where your letter is headed.
Let Postbye cancel Aserta 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 Aserta.
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- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Aserta by mail
Start with your account details
Before writing, collect the name and email on the account and, if you have one, an account or customer number. Aserta can only act on a request it can match to an account.
Set out the request
The request is prepared in Spanish (template es), under the subject line “Asunto: Solicitud de cancelación – [your name]”: end the subscription, stop all further charges and confirm in writing to you.
Mail the letter with a receipt
Send it certified to Madrid, Spain, copying the address from the next section letter for letter, and keep the receipt slip.
File the delivery record
Delivery confirmation is your evidence that Aserta was asked. Watch the next statement or two for any further Aserta charge.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Aserta cancellation letter goes
Written requests to Aserta go to Calle Velazquez 94 3a, 28006 Madrid, Spain.
The envelope is going to Madrid, Spain, so the postcode 28006 must be on the front.
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
Before you cancel Aserta, 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 Aserta 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.
Aserta cancellation at a glance
- How Aserta accepts cancellations
- By mailed letter
- Mailing address on file
- Aserta Calle Velazquez 94 3a 28006 Madrid Spain
- Country
- Spain
- Letter language
- Spanish (template es)
- Added to the database
- May 6, 2026
- Data last checked
