I switched to Turkcell with my line number 545280***49 on March 20. My first bill was issued on April 10, marking the end of the first month of my contract. The second bill was issued on May 10, completing the second month. Strangely, a billing cycle change request was made through the Turkcell app on May 11 at around 12:40 a.m., and a new bill was issued on May 20, making it appear as though the third month of my contract had already passed. I do not have a fixed internet connection at home, and I always turn off my mobile data before sleeping. I filed a complaint with Turkcell customer service, stating that I did not make this request and asked for it to be canceled, but they persistently refused. I have screenshots from the Turkcell app showing my transaction history and bills. I had no reason to request a billing cycle change, and I don't know who would think of doing that just one hour after the bill was issued—especially around 1 a.m. Changing the billing date to make it seem like my contract ended a month earlier is not a fair practice. I hope this mistake is corrected as soon as possible.
I started using a Turkcell line with the number 507 *****69 on February 27, 2025, but I wasn’t satisfied with the call quality or internet performance...
There is no way I exceeded my internet usage during the specified dates. Unlike in the past, I did not receive any warning messages about my remaining data balance. During those days, I was either at home or at work, both of which have stable Wi-Fi connections, so I had no reason to use mobile data....
I switched to a Turkcell postpaid plan after being assured repeatedly—both at branches and through the app—that I could cancel within one month without incurring any fees. Trusting this, I decided to move back to Türk Telekom just three days later. However, I received a bill on January 10, 2025, sta...
I have never seen such a terrible mobile operator like Turkcell in my life. When I found out that my contract would end on July 10, 2025, I called cus...
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