Cancel your Accelerant subscription by mail
Cancelling Accelerant means putting it in writing; the company takes requests by mailed letter, and a tracked one leaves a clear record. Accelerant receives written requests in Madrid, Spain.
Let Postbye cancel Accelerant 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 Accelerant.
- 4.8 from 2,931 reviews
- 2 Accelerant cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Accelerant by mail
Find your account details
Before writing, collect the name and email on the account and, if you have one, an account or customer number. Accelerant can only act on a request it can match to an account.
Put the request in writing
Postbye writes the letter in Spanish from our Spanish template, because Accelerant's address is in Spain. It opens with the subject line “Asunto: Solicitud de cancelación – [your name]” and asks Accelerant to end the subscription, stop all further charges and confirm in writing.
Post the letter
Send it certified to Madrid, Spain, copying the address from the next section letter for letter, and keep the receipt slip.
Hold on to the receipt
Delivery confirmation is your evidence that Accelerant was asked. Watch the next statement or two for any further Accelerant charge.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Accelerant cancellation letter goes
Accelerant can be reached by post at Calle de Barceló, 28004 Madrid, Spain.
The postcode 28004 belongs to Madrid, Spain, so this is where the envelope is delivered.
Your details go in a block headed by Titular de la cuenta, Dirección de facturación registrada and Correo electrónico registrado, and the opening line is “A quien corresponda,”.
Prefer to write it yourself? Use our letter template
Every address we hold for Accelerant, with the envelope wording
Before you cancel Accelerant, 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 Accelerant 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.
A phone call leaves nothing behind; a letter leaves a copy, a date and a delivery receipt.
Accelerant cancellation at a glance
- How Accelerant accepts cancellations
- By mailed letter
- Mailing address on file
- Accelerant Calle de Barceló 28004 Madrid Spain
- Country
- Spain
- Letter language
- Spanish (template es)
- Added to the database
- May 6, 2026
- Data last checked
