Cancel your Dew21 subscription by mail
For Dew21 the route is a written letter: cancellation requests are taken by post, and certified mail shows when yours arrived. The cancellation address on file for Dew21 is in Dortmund, Germany.
Let Postbye cancel Dew21 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 Dew21.
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- 3 Dew21 cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Dew21 by mail
Get your account details together
You will need the name and email on the account and, if you have one, an account or customer number. Use exactly the details Dew21 holds, so the request can be matched to your account.
Set out the request
Because Dew21 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.
Post the letter
Take the letter to the post office and ask for certified delivery to 44041 Dortmund. Keep the tracking number it gives you.
Hold on to the receipt
It shows the date Dew21 received your letter. Check your next statement: no Dew21 charge should post after the cancellation date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Dew21 cancellation letter goes
Written requests to Dew21 go to Postfach 104141, 44041 Dortmund, Germany.
“Postfach 104141” is a post-office box or mail-sorting line, so it takes post and not couriers: certified mail is the right way to reach it.
The letter is addressed “Sehr geehrte Damen und Herren,” and its details block uses the labels Kontoinhaber, Hinterlegte Rechnungsadresse and Hinterlegte E-Mail-Adresse.
Prefer to write it yourself? Use our letter template
Before you cancel Dew21, 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 Dew21 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.
Dew21 cancellation at a glance
- How Dew21 accepts cancellations
- By mailed letter
- Mailing address on file
- Dew21 Postfach 104141 44041 Dortmund Germany
- Country
- Germany
- Letter language
- German (template de)
- Added to the database
- May 19, 2026
- Data last checked
