Skip to content

Where to send your Proximus cancellation letter

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

The addresses we hold

One place for Proximus's mailing addresses: the Brussels 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

ProximusKoning Albert II-laan 271030 BrusselsBelgium

The Belgium address on file for Proximus. Postal code 1030.

Second address on file

ProximusBoulevard du Roi Albert II 271030 BrusselsBelgium

The database lists this as a second address for Proximus. Use the primary address above unless your agreement names this one.

How to address the envelope

  1. Copy the address exactly

    One address block, copied whole: Koning Albert II-laan 27, 1030 Brussels, Belgium. If any line differs from the card above, start the envelope again.

  2. Add the return address

    Top-left, your own name and address. A return address is what the post office needs to send the letter back if Proximus has moved.

  3. Ask for certified mail

    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.

  4. Keep what the post office gives you

    Keep your copy of the letter, the receipt and the delivery record in one place. The delivery date is the one to quote if the account is billed again.

The cancellation letter

The request itself is short: Proximus 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]

Proximus Koning Albert II-laan 27 1030 Brussels Belgium

To whom it may concern,

I am cancelling my account with Proximus, 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 Proximus 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 Proximus