Cancel your Citiwerke subscription by mail
Citiwerke accepts written cancellation requests by post, which makes certified mail the strongest proof that you asked. Citiwerke receives written requests in Singen (Hohentwiel), Germany.
Let Postbye cancel Citiwerke 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 Citiwerke.
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- 2 Citiwerke cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Citiwerke by mail
Note your account details
Start with the name and email on the account and, if you have one, an account or customer number, so the request to Citiwerke names the right account the first time.
Draft the request
Postbye drafts the request in German, the language of Germany, with “Betreff: Kündigungsanfrage – [your name]” as the subject line. It asks Citiwerke to close the subscription, stop billing and confirm in writing.
Post the letter
Use certified mail for the 78224 Singen (Hohentwiel) address in the next section, so the post office records the delivery. Write down the tracking number.
Keep the proof of delivery
Delivery confirmation is your evidence that Citiwerke was asked. Watch the next statement or two for any further Citiwerke charge.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Citiwerke cancellation letter goes
Citiwerke lists Industriestraße 9, 78224 Singen (Hohentwiel), Germany as its mailing address.
Copy the postal code 78224 exactly: it is what routes the letter to Baden-Württemberg, Germany.
Inside, the salutation reads “Sehr geehrte Damen und Herren,”, followed by your details under Kontoinhaber, Hinterlegte Rechnungsadresse and Hinterlegte E-Mail-Adresse.
Prefer to write it yourself? Use our letter template
Every address we hold for Citiwerke, with the envelope wording
Before you cancel Citiwerke, 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 Citiwerke 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.
Citiwerke cancellation at a glance
- How Citiwerke accepts cancellations
- By mailed letter
- Mailing address on file
- Citiwerke Industriestraße 9 78224 Singen (Hohentwiel) Germany
- Country
- Germany
- Letter language
- German (template de)
- Added to the database
- May 19, 2026
- Data last checked
