Cancel your Superbox subscription by mail
Cancelling Superbox means putting it in writing; the company takes requests by mailed letter, and a tracked one leaves a clear record. Letters to Superbox go to Maltepe, Turkey.
Let Postbye cancel Superbox 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 Superbox.
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- 3 Superbox cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Superbox by mail
Start with your account details
You will need the account number, the phone number or service address being cancelled and the name on the account. Use exactly the details Superbox holds, so the request can be matched to your account.
Write your request
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.
Post it with proof of delivery
Send the letter to the Maltepe mailing address shown below by certified mail. Keep the tracking number safe.
File the delivery record
Once the letter is delivered, the date on the receipt is the date Superbox 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 Superbox cancellation letter goes
Superbox can be reached by post at Aydınevler Mah. İnönü Cad. No:20, Küçükyalı Ofispark B Blok, 34854 Maltepe, Turkey.
Postal code 34854 places the address in Maltepe, Turkey.
The letter is addressed “İlgili Makama,” and its details block uses 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 Superbox, with the envelope wording
Before you cancel Superbox, check these
- 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.
- Name the exact line or service address. Accounts with several lines can leave one of them running.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Superbox 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.
Superbox cancellation at a glance
- How Superbox accepts cancellations
- By mailed letter
- Mailing address on file
- Superbox Aydınevler Mah. İnönü Cad. No:20 Küçükyalı Ofispark B Blok 34854 Maltepe Turkey
- Country
- Turkey
- Letter language
- Turkish (template tr)
- Category (from the company name)
- Phone & internet
- Added to the database
- October 13, 2026
- Data last checked
