Where to send your IHHA cancellation letter
Read the addresses on this page next to the full guide to cancelling IHHA.
The addresses we hold
This page shows every mailing address we hold for IHHA, starting with the one a cancellation letter should go to in Wien, 1100, and how to address the envelope so it arrives without a query.
Where the letter goesMailing address
IHHAKnöllgasse 331100 WienAustriaThe Austria address on file for IHHA. Postal code 1100.
How to address the envelope
Copy the address exactly
Copy Knöllgasse 33, 1100 Wien, Austria letter for letter. A wrong digit in 1100 is enough to send the letter on a detour.
Add your return address
Top-left, your own name and address. A return address is what the post office needs to send the letter back if IHHA has moved.
Buy the certified service
Certified mail is bought at the post office: hand the letter to a postal employee, keep the postmarked receipt, and follow the article number until the delivery shows.
Keep the records
Your copy of the letter, the mailing receipt and the tracking record belong together in one file.
The letter, written out
The request itself is short: IHHA is asked to end the account, stop the charges and confirm in writing, with the name and email on the account and, if you have one, an account or customer number where the brackets are.
[Your name] [Your street address] [City, State ZIP] [Your email address]
[Date]
IHHA Knöllgasse 33 1100 Wien Austria
To whom it may concern,
I am cancelling my account with IHHA, 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 IHHA 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.