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Cancel your Proefdiervrij subscription by mail

Cancelling Proefdiervrij means putting it in writing; the company takes requests by mailed letter, and a tracked one leaves a clear record. Proefdiervrij receives written requests in Den Haag, Netherlands.

Let Postbye cancel Proefdiervrij 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.

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Postbye is not affiliated with Proefdiervrij.

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  • Delivery proof sent to you
  • We confirm your cancellation

How to cancel Proefdiervrij by mail

  1. Find your account details

    Check your donor or supporter number, the name on the donation and the amount and date of the latest payment before anything else. A request that does not match the account on file at Proefdiervrij is the easiest one to set aside.

  2. Write your request

    Proefdiervrij 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.

  3. Post it with proof of delivery

    Send the letter to the Den Haag mailing address shown below by certified mail. Keep the tracking number safe.

  4. File the delivery record

    Delivery confirmation is your evidence that Proefdiervrij was asked. Watch the next statement or two for any further Proefdiervrij charge.

With Postbye, steps 2 to 4 take about two minutes of your time.

Where your Proefdiervrij cancellation letter goes

ProefdiervrijGroot Hertoginnelaan 2012517 ES Den HaagNetherlands

Written requests to Proefdiervrij go to Groot Hertoginnelaan 201, 2517 ES Den Haag, Netherlands.

The postcode 2517 ES belongs to Zuid-Holland, Netherlands, so this is where the envelope is delivered.

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 Proefdiervrij, with the envelope wording

Before you cancel Proefdiervrij, check these

  • Quote your donor or supporter number so the right gift is stopped.
  • A direct debit can also be ended with your bank. Do both if you want to be sure.
  • Say whether the request covers every regular gift or only one of them.

Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.

Let Postbye cancel Proefdiervrij 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.

Cancel Proefdiervrij

Cancelling a regular donation

Regular donations run until the donor ends them, so a written request should give the donor reference and ask the charity to stop the payment and confirm the end date.

Putting the request in writing means there is a date on file for when you asked, which matters if a charge appears afterwards.

Proefdiervrij cancellation at a glance

How Proefdiervrij accepts cancellations
By mailed letter
Mailing address on file
Proefdiervrij Groot Hertoginnelaan 201 2517 ES Den Haag Netherlands
Country
Netherlands
Letter language
Dutch (template nl)
Category (from the company name)
Charities & donations
Added to the database
June 3, 2026
Data last checked

Proefdiervrij cancellation questions

Where do I send my Proefdiervrij cancellation letter?

Address the letter to Proefdiervrij, Groot Hertoginnelaan 201, 2517 ES Den Haag, Netherlands.

What should I check before I cancel Proefdiervrij?

For a regular donation: a direct debit can also be ended with your bank. Do both if you want to be sure.

Which language is my Proefdiervrij letter written in?

Dutch. Proefdiervrij's address is in Netherlands, so the letter is prepared from the Dutch template under the subject line “Onderwerp: annuleringsverzoek – [your name]”.

What do I need to cancel Proefdiervrij?

Have your donor or supporter number, the name on the donation and the amount and date of the latest payment to hand. The details in the letter need to match what Proefdiervrij has on file.

Will Proefdiervrij confirm my cancellation?

The letter asks Proefdiervrij to end the account, stop further charges and confirm in writing, but a reply is not guaranteed. What you can rely on is the delivery receipt: it shows the date Proefdiervrij received the request. If a charge posts after that date, quote the receipt with your copy of the letter.