Cancel your KPN Zakelijk subscription by mail
To end a KPN Zakelijk subscription you write to them: KPN Zakelijk handles cancellations by post. Our database has KPN Zakelijk's mailing address in Rotterdam, Netherlands.
Let Postbye cancel KPN Zakelijk 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 Zakelijk.
- 4.8 from 2,931 reviews
- 2 KPN Zakelijk cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel KPN Zakelijk by mail
Start with your account details
Start with the name and email on the account and, if you have one, an account or customer number, so the request to KPN Zakelijk names the right account the first time.
Draft the request
KPN Zakelijk 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.
Send it by certified mail
Address the envelope to KPN Zakelijk, Rotterdam, exactly as printed in the next section. Certified mail gives you a tracking number and a delivery record.
Hold on to the receipt
Once the letter is delivered, the date on the receipt is the date KPN Zakelijk was told. Compare it with your statements over the next billing cycle.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your KPN Zakelijk cancellation letter goes
The mailing address we hold for KPN Zakelijk is Wilhelminakade 123, 3072 AP Rotterdam, Netherlands.
The envelope is going to Rotterdam in Zuid-Holland, Netherlands, so the postcode 3072 AP must be on the front.
Inside, the salutation reads “Geachte heer/mevrouw,”, followed by your details under Accounthouder, Factuuradres in dossier and E-mailadres in dossier.
Prefer to write it yourself? Use our letter template
Every address we hold for KPN Zakelijk, with the envelope wording
Before you cancel KPN Zakelijk, check these
- Cancelling usually ends access at the end of the period you paid for, so you keep what you paid for until then.
- Use the same name and email as on the account. A mismatch can delay the request.
- Check your next statement: no charge should appear after 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 Zakelijk 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.
How cancelling by mail works
A subscription ends when the company records your request, not when you stop using it, and a letter is the record you can show later.
If a charge shows up after you cancelled, the letter and its receipt are what you put in front of the company or your bank.
KPN Zakelijk cancellation at a glance
- How KPN Zakelijk accepts cancellations
- By mailed letter
- Mailing address on file
- KPN Zakelijk Wilhelminakade 123 3072 AP Rotterdam Netherlands
- Country
- Netherlands
- Letter language
- Dutch (template nl)
- Added to the database
- June 24, 2026
- Data last checked
