Cancel your Millenicom subscription by mail
For Millenicom the route is a written letter: cancellation requests are taken by post, and certified mail shows when yours arrived. Our database has Millenicom's mailing address in Ümraniye, İstanbul, Turkey.
Let Postbye cancel Millenicom 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 Millenicom.
- 4.8 from 2,931 reviews
- 3 Millenicom cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Millenicom by mail
Gather your account details
Put the account number, the phone number or service address being cancelled and the name on the account in front of you before you write: the request to Millenicom is only as good as the details it quotes.
Put the request in writing
Millenicom is based in Turkey, so the letter goes out in Turkish, built from our Turkish template. Subject line: “Konu: İptal Talebi – [your name]”. It asks for the subscription to end, for further charges to stop and for written confirmation.
Mail the letter with a receipt
Send the letter to the Ümraniye, İstanbul mailing address shown below by certified mail. Keep the tracking number safe.
Save the tracking record
Once the letter is delivered, the date on the receipt is the date Millenicom 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 Millenicom cancellation letter goes
For a letter to Millenicom, use Fatih Sultan Mehmet Mah. Balkan Cad. 47, Casper Plaza, İç Kapı No:1, 34771 Ümraniye, İstanbul, Turkey.
The postcode 34771 belongs to Ümraniye, İstanbul, Turkey, so this is where the envelope is delivered.
The letter greets the reader with “İlgili Makama,”; your own details sit under the labels Hesap sahibi, Sistemdeki fatura adresi and Kayıtlı e-posta.
Prefer to write it yourself? Use our letter template
Every address we hold for Millenicom, with the envelope wording
Before you cancel Millenicom, 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 Millenicom 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 mailed letter is slower than a phone call but it is the version that proves what you asked for and when.
Millenicom cancellation at a glance
- How Millenicom accepts cancellations
- By mailed letter
- Mailing address on file
- Millenicom Fatih Sultan Mehmet Mah. Balkan Cad. 47 Casper Plaza, İç Kapı No:1 34771 Ümraniye, İstanbul Turkey
- Country
- Turkey
- Letter language
- Turkish (template tr)
- Category (from the company name)
- Phone & internet
- Added to the database
- October 15, 2026
- Data last checked
