Cancel your KPN Internet subscription by mail
Cancelling KPN Internet means putting it in writing; the company takes requests by mailed letter, and a tracked one leaves a clear record. Our database has KPN Internet's mailing address in Rotterdam, Netherlands.
Let Postbye cancel KPN Internet 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.
Money-back guarantee within 10 business days.
Postbye is not affiliated with KPN Internet.
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- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel KPN Internet by mail
Get your account details together
Put the account number, the phone number or service address being cancelled and the name on the account in front of you before you write: the request to KPN Internet is only as good as the details it quotes.
Prepare the letter
KPN Internet is based in Netherlands, so the letter goes out in Dutch, built from our Dutch template. Subject line: “Onderwerp: annuleringsverzoek – [your name]”. It asks for the subscription to end, for further charges to stop and for written confirmation.
Post the letter
Post it by certified mail to KPN Internet in Rotterdam, Netherlands, using the exact address below, and note the tracking number.
Hold on to the receipt
Delivery confirmation is your evidence that KPN Internet was asked. Watch the next statement or two for any further KPN Internet charge.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your KPN Internet cancellation letter goes
KPN Internet can be reached by post at Wilhelminakade 123, 3072 AP Rotterdam, Netherlands.
Rotterdam is in Zuid-Holland, Netherlands; the postal code to quote is 3072 AP.
Your name, address and email appear in a short block labelled Accounthouder, Factuuradres in dossier and E-mailadres in dossier, under the greeting “Geachte heer/mevrouw,”.
Prefer to write it yourself? Use our letter template
Every address we hold for KPN Internet, with the envelope wording
Before you cancel KPN Internet, check these
- Name the exact line or service address. Accounts with several lines can leave one of them running.
- Ask for a final bill in writing and return any rented equipment by tracked mail.
- Check for an early-termination fee or a remaining equipment balance before the cancellation date.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel KPN Internet 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.
Cancelling a phone or internet plan
Phone and internet providers tie cancellation to contracts, equipment balances and notice periods, so the request should name the exact line or service and ask for a final bill in writing.
A phone call leaves nothing behind; a letter leaves a copy, a date and a delivery receipt.
KPN Internet cancellation at a glance
- How KPN Internet accepts cancellations
- By mailed letter
- Mailing address on file
- KPN Internet Wilhelminakade 123 3072 AP Rotterdam Netherlands
- Country
- Netherlands
- Letter language
- Dutch (template nl)
- Category (from the company name)
- Phone & internet
- Added to the database
- June 24, 2026
- Data last checked
