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Where to send your A1 cancellation letter

Read the addresses on this page next to the full guide to cancelling A1.

The addresses we hold

The addresses below are what our database holds for A1, first the one a cancellation letter belongs to in Wien, then the others, so you can tell them apart.

Where the letter goesMailing address

A1Lassallestraße 91020 WienAustria

The Austria address on file for A1. Postal code 1020.

How to address the envelope

  1. Copy the address exactly

    Address the envelope to Lassallestraße 9, 1020 Wien, Austria. Everything on those lines matters for the sorting machines, so nothing is abbreviated by hand.

  2. Add your return address

    Your name and postal address go top-left on the front (or the back flap). If the letter cannot be delivered it comes back to you, which is itself evidence of the attempt.

  3. Send it by certified mail

    At the counter, certified mail costs a fee on top of the postage and comes with a mailing receipt and a delivery record. The tracking number on the green label is what you follow.

  4. Keep the records

    Hold on to the letter copy, the receipt and the tracking page.

Your letter to A1

The request itself is short: A1 is asked to end the account, stop the charges and confirm in writing, with the account number, the phone number or service address being cancelled and the name on the account where the brackets are.

Sample cancellation letter

[Your name] [Your street address] [City, State ZIP] [Your email address]

[Date]

A1 Lassallestraße 9 1020 Wien Austria

To whom it may concern,

I am cancelling my account with A1, 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]

Let Postbye cancel A1 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.

Cancel A1