Cancel your Polarstern subscription by mail
For Polarstern the route is a written letter: cancellation requests are taken by post, and certified mail shows when yours arrived. Polarstern receives written requests in München, Germany.
Let Postbye cancel Polarstern 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 Polarstern.
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- 2 Polarstern cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Polarstern by mail
Find 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 Polarstern has on file.
Prepare the letter
Because Polarstern is dealt with in German, the letter is written in German (template de). Subject: “Betreff: Kündigungsanfrage – [your name]”. It requests an end to the subscription and to every further charge, plus written confirmation.
Mail the letter with a receipt
Post it by certified mail to Polarstern in München, Germany, using the exact address below, and note the tracking number.
Save the tracking record
File the receipt with the letter. A Polarstern charge dated after delivery is the one to dispute, and these two documents are what you quote.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Polarstern cancellation letter goes
The mailing address we hold for Polarstern is Lindwurmstraße 88, 80337 München, Germany.
Copy the postal code 80337 exactly: it is what routes the letter to Bayern, Germany.
Your details go in a block headed by Kontoinhaber, Hinterlegte Rechnungsadresse and Hinterlegte E-Mail-Adresse, and the opening line is “Sehr geehrte Damen und Herren,”.
Prefer to write it yourself? Use our letter template
Every address we hold for Polarstern, with the envelope wording
Before you cancel Polarstern, 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 Polarstern 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
A subscription ends when the company records your request, not when you stop using it, and a letter is the record you can show later.
A letter is the formal route: it states the request in writing, carries a date and, sent by certified mail, comes with proof of delivery.
Polarstern cancellation at a glance
- How Polarstern accepts cancellations
- By mailed letter
- Mailing address on file
- Polarstern Lindwurmstraße 88 80337 München Germany
- Country
- Germany
- Letter language
- German (template de)
- Added to the database
- May 19, 2026
- Data last checked
