Cancel your Trias subscription by mail
Trias accepts written cancellation requests by post, which makes certified mail the strongest proof that you asked. Our database has Trias's mailing address in Arnhem, Netherlands.
Let Postbye cancel Trias 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 Trias.
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- 2 Trias cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Trias by mail
Gather your account details
Before writing, collect the name and email on the account and, if you have one, an account or customer number. Trias can only act on a request it can match to an account.
Write your request
Trias 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.
Post the letter
Use certified mail for the 6802 EA Arnhem address in the next section, so the post office records the delivery. Write down the tracking number.
Keep proof the letter arrived
Keep the tracking record with your copy of the letter. If Trias bills you after the date it received the request, you have the dates to point to.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Trias cancellation letter goes
Written requests to Trias go to Postbus 5040, 6802 EA Arnhem, Netherlands.
“Postbus 5040” 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
Before you cancel Trias, check these
- Look for annual or multi-month plans. A plan paid in advance usually runs to the end of the period you paid for.
- Write well before the next billing date. A request that arrives after it can leave one more charge on your statement.
- If an app store or phone carrier bills you, the company cannot cancel it. Cancel with that partner as well.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Trias 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.
Putting the request in writing means there is a date on file for when you asked, which matters if a charge appears afterwards.
Trias cancellation at a glance
- How Trias accepts cancellations
- By mailed letter
- Mailing address on file
- Trias Postbus 5040 6802 EA Arnhem Netherlands
- Country
- Netherlands
- Letter language
- Dutch (template nl)
- Added to the database
- June 3, 2026
- Data last checked
