Cancel your Alartec subscription by mail
To end a Alartec subscription you write to them: Alartec handles cancellations by post. Alartec receives written requests in Coslada, Spain.
Let Postbye cancel Alartec 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 Alartec.
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- 3 Alartec cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Alartec by mail
Gather your account details
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 Alartec has on file.
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.
Send the letter by certified mail
Mail the letter by certified mail to the Coslada address in the next section, and keep the tracking number.
Keep the delivery receipt
Delivery confirmation is your evidence that Alartec was asked. Watch the next statement or two for any further Alartec charge.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Alartec cancellation letter goes
Written requests to Alartec go to Calle Coslada, 28823 Coslada, Spain.
The envelope is going to Coslada in Madrid, Spain, so the postcode 28823 must be on the front.
Your name, address and email appear in a short block labelled Titular de la cuenta, Dirección de facturación registrada and Correo electrónico registrado, under the greeting “A quien corresponda,”.
Prefer to write it yourself? Use our letter template
Every address we hold for Alartec, with the envelope wording
Before you cancel Alartec, check these
- 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.
- Write well before the next billing date. A request that arrives after it can leave one more charge on your statement.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Alartec 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
Most subscriptions keep billing until someone tells the company to stop, and a dated letter is proof that somebody did.
A phone call leaves nothing behind; a letter leaves a copy, a date and a delivery receipt.
Alartec cancellation at a glance
- How Alartec accepts cancellations
- By mailed letter
- Mailing address on file
- Alartec Calle Coslada 28823 Coslada Spain
- Country
- Spain
- Letter language
- Spanish (template es)
- Added to the database
- May 6, 2026
- Data last checked
