Cancel your TurkNet (TurkNet İletişim Hizmetleri A.Ş.) subscription by mail
For TurkNet (TurkNet İletişim Hizmetleri A.Ş.) the route is a written letter: cancellation requests are taken by post, and certified mail shows when yours arrived. The cancellation address on file for TurkNet (TurkNet İletişim Hizmetleri A.Ş.) is in Şişli, İstanbul, Turkey.
Let Postbye cancel TurkNet (TurkNet İletişim Hizmetleri A.Ş.) 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 TurkNet (TurkNet İletişim Hizmetleri A.Ş.).
- 4.8 from 2,931 reviews
- 2 TurkNet (TurkNet İletişim Hizmetleri A.Ş.) cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel TurkNet (TurkNet İletişim Hizmetleri A.Ş.) by mail
Find your account details
Check the account number, the phone number or service address being cancelled and the name on the account before anything else. A request that does not match the account on file at TurkNet (TurkNet İletişim Hizmetleri A.Ş.) is the easiest one to set aside.
Prepare the letter
The request is prepared in Turkish (template tr), under the subject line “Konu: İptal Talebi – [your name]”: end the subscription, stop all further charges and confirm in writing to you.
Send it by certified mail
Send the letter to the Şişli, İstanbul mailing address shown below by certified mail. Keep the tracking number safe.
Keep proof the letter arrived
File the receipt with the letter. A TurkNet (TurkNet İletişim Hizmetleri A.Ş.) 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 TurkNet (TurkNet İletişim Hizmetleri A.Ş.) cancellation letter goes
Written requests to TurkNet (TurkNet İletişim Hizmetleri A.Ş.) go to Büyükdere Cad. No:89, Torun Center Fulya, A Blok No:74A, 34394 Şişli, İstanbul, Turkey.
The envelope is going to Şişli, İstanbul, Turkey, so the postcode 34394 must be on the front.
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 TurkNet (TurkNet İletişim Hizmetleri A.Ş.), with the envelope wording
Before you cancel TurkNet (TurkNet İletişim Hizmetleri A.Ş.), check these
- Name the exact line or service address. Accounts with several lines can leave one of them running.
- 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.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel TurkNet (TurkNet İletişim Hizmetleri A.Ş.) 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.
TurkNet (TurkNet İletişim Hizmetleri A.Ş.) cancellation at a glance
- How TurkNet (TurkNet İletişim Hizmetleri A.Ş.) accepts cancellations
- By mailed letter
- Mailing address on file
- TurkNet (TurkNet İletişim Hizmetleri A.Ş.) Büyükdere Cad. No:89 Torun Center Fulya, A Blok No:74A 34394 Şişli, 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
