Cancel your Onvz subscription by mail
Onvz deals with cancellations through the post, so the request goes in a letter and the certified-mail receipt is your proof of when. Our database has Onvz's mailing address in Houten, Netherlands.
Let Postbye cancel Onvz 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 Onvz.
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- 2 Onvz cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Onvz by mail
Start with your account details
Have the member or policy number, the full name of the policyholder and the date you want the plan to end to hand. The details in the letter need to match what Onvz has on file.
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.
Send it by certified mail
Send it certified to Houten, Netherlands, copying the address from the next section letter for letter, and keep the receipt slip.
Save the tracking record
Once the letter is delivered, the date on the receipt is the date Onvz 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 Onvz cancellation letter goes
Onvz can be reached by post at De Molen 66, 3995 AX Houten, Netherlands.
The envelope is going to Houten in Utrecht, Netherlands, so the postcode 3995 AX must be on the front.
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
Before you cancel Onvz, check these
- List every dependant on the plan. Ending the policyholder's cover can end theirs too.
- Claims for care received before the end date can still be processed. Ask how to submit them after you cancel.
- Do not cancel until your next plan is active. A gap in cover can mean you pay for care yourself.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Onvz 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 health insurance plan
Health plans end on set dates and often cover a whole household, so the request has to name the plan, every person on it and the date cover should stop, with new cover lined up first.
A phone call leaves nothing behind; a letter leaves a copy, a date and a delivery receipt.
Onvz cancellation at a glance
- How Onvz accepts cancellations
- By mailed letter
- Mailing address on file
- Onvz De Molen 66 3995 AX Houten Netherlands
- Country
- Netherlands
- Letter language
- Dutch (template nl)
- Category (from the company name)
- Health insurance
- Added to the database
- June 3, 2026
- Data last checked
