Cancel your Katrien subscription by mail
Katrien accepts written cancellation requests by post, which makes certified mail the strongest proof that you asked. The cancellation address on file for Katrien is in Alphen Aan De Rijn, Netherlands.
Let Postbye cancel Katrien 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 Katrien.
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- 2 Katrien cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Katrien by mail
Find your account details
Put the name and email on the account and, if you have one, an account or customer number in front of you before you write: the request to Katrien is only as good as the details it quotes.
Set out the request
The request is prepared in Dutch (template nl), under the subject line “Onderwerp: annuleringsverzoek – [your name]”: end the subscription, stop all further charges and confirm in writing to you.
Mail it with tracking
Use certified mail for the 2400 AB Alphen Aan De Rijn address in the next section, so the post office records the delivery. Write down the tracking number.
Keep the delivery receipt
Delivery confirmation is your evidence that Katrien was asked. Watch the next statement or two for any further Katrien charge.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Katrien cancellation letter goes
The mailing address we hold for Katrien is Postbus 75, 2400 AB Alphen Aan De Rijn, Netherlands.
“Postbus 75” is a post-office box or mail-sorting line, so it takes post and not couriers: certified mail is the right way to reach it.
The letter greets the reader with “Geachte heer/mevrouw,”; your own details sit under the labels Accounthouder, Factuuradres in dossier and E-mailadres in dossier.
Prefer to write it yourself? Use our letter template
Every address we hold for Katrien, with the envelope wording
Before you cancel Katrien, check these
- 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.
- Look for annual or multi-month plans. A plan paid in advance usually runs to the end of the period you paid for.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Katrien 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
Most subscriptions keep billing until someone tells the company to stop, and a dated letter is proof that somebody did.
A phone call leaves nothing behind; a letter leaves a copy, a date and a delivery receipt.
Katrien cancellation at a glance
- How Katrien accepts cancellations
- By mailed letter
- Mailing address on file
- Katrien Postbus 75 2400 AB Alphen Aan De Rijn Netherlands
- Country
- Netherlands
- Letter language
- Dutch (template nl)
- Added to the database
- June 3, 2026
- Data last checked
