Cancel your Onecall subscription by mail
Cancelling Onecall means putting it in writing; the company takes requests by mailed letter, and a tracked one leaves a clear record. Post for Onecall is handled in Oslo, Norway, which is where your letter is headed.
Let Postbye cancel Onecall 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 Onecall.
- 4.8 from 2,931 reviews
- 3 Onecall cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Onecall by mail
Start with your account details
Have the account number, the phone number or service address being cancelled and the name on the account to hand. The details in the letter need to match what Onecall has on file.
Put the request in writing
Onecall is based in Norway, so the letter goes out in Norwegian, built from our Norwegian template. Subject line: “Emne: Forespørsel om oppsigelse – [your name]”. It asks for the subscription to end, for further charges to stop and for written confirmation.
Send the letter by certified mail
Use certified mail for the 0585 Oslo address in the next section, so the post office records the delivery. Write down the tracking number.
Keep the proof of delivery
The receipt dates your request. Look at your next statement for any Onecall charge after that date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Onecall cancellation letter goes
Written requests to Onecall go to Lørenfaret 1A, 0585 Oslo, Norway.
Oslo is the delivery town, Norway; the postal code to quote is 0585.
The letter is addressed “Til den det måtte angå,” and its details block uses the labels Kontoinnehaver, Fakturaadresse registrert and Registrert e-postadresse.
Prefer to write it yourself? Use our letter template
Every address we hold for Onecall, with the envelope wording
Before you cancel Onecall, check these
- Ask for a final bill in writing and return any rented equipment by tracked mail.
- Check for an early-termination fee or a remaining equipment balance before the cancellation date.
- If you are moving to another provider, keep the line active until the new service works, then cancel.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Onecall 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 phone or internet plan
Phone and internet providers tie cancellation to contracts, equipment balances and notice periods, so the request should name the exact line or service and ask for a final bill in writing.
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.
Onecall cancellation at a glance
- How Onecall accepts cancellations
- By mailed letter
- Mailing address on file
- Onecall Lørenfaret 1A 0585 Oslo Norway
- Country
- Norway
- Letter language
- Norwegian (template no)
- Category (from the company name)
- Phone & internet
- Added to the database
- July 31, 2026
- Data last checked
