Cancel your Knab subscription by mail
Knab takes cancellation requests by mailed letter, so a dated certified-mail letter is the record that counts. Post for Knab is handled in Amsterdam, Netherlands, which is where your letter is headed.
Let Postbye cancel Knab 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 Knab.
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- 3 Knab cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Knab by mail
Start with your account details
Check the name and email on the account and, if you have one, an account or customer number before anything else. A request that does not match the account on file at Knab is the easiest one to set aside.
Put the request in writing
Postbye writes the letter in Dutch from our Dutch template, because Knab's address is in Netherlands. It opens with the subject line “Onderwerp: annuleringsverzoek – [your name]” and asks Knab to end the subscription, stop all further charges and confirm in writing.
Mail it with tracking
Mail the letter by certified mail to the Amsterdam address in the next section, and keep the tracking number.
Keep the delivery receipt
File the receipt with the letter. A Knab charge dated after delivery is the one to dispute, and these two documents are what you quote.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Knab cancellation letter goes
The mailing address we hold for Knab is Thomas R. Malthusstraat 1-3, 1066 JR Amsterdam, Netherlands.
The postcode 1066 JR belongs to Noord-Holland, Netherlands, so this is where the envelope is delivered.
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
Before you cancel Knab, 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 Knab 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.
A phone call leaves nothing behind; a letter leaves a copy, a date and a delivery receipt.
Knab cancellation at a glance
- How Knab accepts cancellations
- By mailed letter
- Mailing address on file
- Knab Thomas R. Malthusstraat 1-3 1066 JR Amsterdam Netherlands
- Country
- Netherlands
- Letter language
- Dutch (template nl)
- Added to the database
- June 3, 2026
- Data last checked
