Where to send your SLKK cancellation letter
Read the addresses on this page next to the full guide to cancelling SLKK.
The addresses we hold
One place for SLKK's mailing addresses: the Zürich delivery point for a cancellation letter first, then the rest of what the database holds, with envelope wording that matches.
Where the letter goesMailing address
SLKKHofwiesenstrasse 3708050 ZürichSwitzerlandThe Switzerland address on file for SLKK. Postal code 8050.
How to address the envelope
Use the address letter for letter
The front of the envelope carries Hofwiesenstrasse 370, 8050 Zürich, Switzerland and nothing else in the address block. Check the 8050 digit by digit before it goes in the post.
Add the return address
Print your return address in the top-left corner. Without it, an undeliverable letter is simply lost instead of returned to you.
Certified mail, not a courier
Take the letter to a post office counter and ask for certified mail: you get a postmarked receipt and a delivery record. Keep the tracking number and check it until it shows delivered.
Keep the records
The postmarked receipt, the tracking record and your signed copy of the letter are the set that proves the request.
The cancellation letter
The letter below asks SLKK to end the account, stop further charges and confirm in writing. Put the name and email on the account and, if you have one, an account or customer number in the bracketed places.
[Your name] [Your street address] [City, State ZIP] [Your email address]
[Date]
SLKK Hofwiesenstrasse 370 8050 Zürich Switzerland
To whom it may concern,
I am cancelling my account with SLKK, account or member number [number], with effect from [date or "immediately"]. Please end every add-on and linked plan on this account at the same time.
Please stop all future charges to my payment method, remove my stored payment details, and send written confirmation of the cancellation and its effective date to [your email address].
Sincerely, [Signature] [Your printed name]
Keep reading
The full guide to cancelling this company, our letter template and the postal guides.
Let Postbye cancel SLKK 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.