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Turkcell

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Turkcell

Complaints

414 complaints
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Turkcell One Plus Benefits Not Activated Despite My Subscription

July 9 2:11 PM18

On 26 June, I purchased a One Plus subscription through Turkcell. While purchasing this package, I explicitly requested ...

Turkcell Superbox Connection Problem

July 5 8:49 AM5

I started using my Turkcell Superbox line on 14 June. Every few days I began receiving SMS messages stating, “Because yo...

1

Turkcell SIM Registered to Another Person After Five Years of Use

July 2 9:49 AM15

My name is Ahmad K*** and my mobile numbe is 05365436*** I have been using a Turkcell mobile line for approximately five...

Turkcell Postpaid Line Shows No Service in Iran for 13 Days

June 18 5:11 AM19

Approximately two weeks ago, I purchased a 24‑month postpaid Turkcell line through a reseller in Tehran, Iran, by paying...

Turkcell High Bills But Poor 4.5G Coverage And Internet Speed

June 4 2:12 PM21

Approximately four months ago, I ported my number from another operator to Turkcell. I chose Turkcell with the expectati...

1

Turkcell Store Refused My Legal Power of Attorney and Denied Service

May 26 6:41 PM29

I visited the Turkcell branch located in Setbaşı, Bursa, to pay the outstanding debts of a deceased customer and close t...

5
Resolved

I Want to Cancel My Turkcell Line but They Demand Full Device Payment

May 19 9:26 PM56

"The lady who called me last is an incredible person. Thank you very much for your help and professionalism. I wish every employee were like her."

I want to cancel my Turkcell postpaid mobile line because my phone number h...

Turkcell Superbox Complaint: Low Speed, High Cancellation Fee

May 13 5:32 PM29

I recently subscribed to a Turkcell Superbox service with modem model MC8520B in Adana Seyhan, and the installation was ...

Turkcell Postpaid Line Restriction Without Any Clear Reason

May 13 2:39 PM24

I contacted Turkcell customer services and through a BTK application on 13.05.2026 and was informed that a restriction h...

3

Turkcell Debt Sent To Law Office And Increased Unfairly

May 8 10:44 AM56

I am a Turkcell postpaid line subscriber in Ankara and I use the line with number 5309108***. A few months ago, a debt a...

Turkcell Doubled My Package Price Only 20 Days After Activation

May 5 6:06 PM26

When my Turkcell prepaid line was activated, I was enrolled in a monthly package costing approximately $16 USD, and I wa...

1

Turkcell Charged for Unused Hotspot After Line Conversion

May 2 5:17 PM45

On May 1, 2026, I purchased a $19 hotspot package on my Turkcell prepaid line. On the same day, I switched to a postpaid...

Turkcell Superbox Shows 470 GB More Usage Than Modem Hardware

May 1 2:47 PM23

On April 16, 2026, I started a subscription through Turkcell Superbox with the “Superbox 5G Home 1 TB” package. However,...

1

Turkcell Charged Higher Bill After Contract End Without Consent

April 24 3:56 PM52

My Turkcell postpaid line’s “Bol Star Fırsat 40 GB” annual subscription ended on March 20, 2026. I had been paying aroun...

1

Turkcell App Mistake: Doubled Price Less Data Package Activated

April 20 1:33 AM28

I am a Turkcell postpaid subscriber and, while my existing commitment was still ongoing, I accidentally purchased a new ...

I Face Turkcell Superbox Speed Drop From 100 Mbps to 2 Mbps

April 19 9:32 PM54

I have been a long-time corporate subscriber of Turkcell Superbox. I have been using Superbox for 3 years, and for more ...

Turkcell Has No Signal In My Area And Ignores Ongoing Coverage Issue

April 17 10:28 PM101

I have been experiencing a serious signal problem with my Turkcell mobile line for about 2 months in İstanbul, Silivri. ...

1

Turkcell Charging for Superbox Service That Does Not Work

April 14 1:45 PM42

Since April 1, I have been almost completely unable to use my Turkcell Superbox line in the Muğla Milas region. There ha...

1

I Face Turkcell Overcharge Due to 5G Double Internet Restriction

April 10 2:19 PM78

While using my Turkcell Advantage 30 package, on March 31, 2026, an additional 120 GB of internet was added to my line a...

1

I Face Turkcell Slow Internet And Weak Signal

April 7 11:47 PM57

I use my Turkcell line in the Sultanbeyli Merkez neighborhood, and for about the past month, I have been experiencing se...

I Face Turkcell Superbox Connection Failure Since January

April 7 5:41 PM43

In October, we purchased a 1 TB Superbox internet line from Turkcell. However, starting in January, the connection compl...

1

Turkcell 5G Upgrade Caused Signal Loss – Cannot Use Network

April 5 10:00 PM41

I have been using my Turkcell line without any issues for a long time, but since the transition to the 5G network on Apr...

1

Turkcell Weak Internet Coverage and Connection Problem

April 4 12:47 AM31

I have been experiencing seriously weak mobile internet on my Turkcell line for about 2–3 months in Şanlıurfa, Suruç. Th...

Turkcell eSIM QR Code Request Cannot Activate 5G Without Store

April 3 10:36 AM58

I am a Turkcell mobile line customer and I want to use 5G service with an eSIM. For this, I need a new or updated eSIM Q...