Cancel your Longfonds subscription by mail
Longfonds deals with cancellations through the post, so the request goes in a letter and the certified-mail receipt is your proof of when. Letters to Longfonds go to Amersfoort, Netherlands.
Let Postbye cancel Longfonds 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 Longfonds.
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- 3 Longfonds cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Longfonds by mail
Note your account details
Start with your donor or supporter number, the name on the donation and the amount and date of the latest payment, so the request to Longfonds names the right account the first time.
Prepare the letter
Longfonds 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.
Mail it with tracking
Address the envelope to Longfonds, Amersfoort, exactly as printed in the next section. Certified mail gives you a tracking number and a delivery record.
File the delivery record
File the receipt with the letter. A Longfonds 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 Longfonds cancellation letter goes
Longfonds lists Postbus 627, 3800 AP Amersfoort, Netherlands as its mailing address.
“Postbus 627” 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 is addressed “Geachte heer/mevrouw,” and its details block uses 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 Longfonds, with the envelope wording
Before you cancel Longfonds, check these
- 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.
- Ask the organisation to confirm the end date in writing.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Longfonds 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 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.
A letter is the formal route: it states the request in writing, carries a date and, sent by certified mail, comes with proof of delivery.
Longfonds cancellation at a glance
- How Longfonds accepts cancellations
- By mailed letter
- Mailing address on file
- Longfonds Postbus 627 3800 AP Amersfoort 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
