Superonline 1000 Mbps Fiber Internet Service Does Not Match the Speed I Receive! I subscribe to Turkcell Superonline’s 1000 Mbps fiber internet service, but for months the actual speed I’ve been receiving fluctuates between 90–150 Mbps. Despite calling customer service multiple times, they keep insisting that “there is no issue with the service.” They even offered to send a technical team to my location for a fee of ₺600 to identify the problem. I refuse this charge because the issue clearly stems from Turkcell Superonline’s infrastructure and service quality. I’ve tested the connection using different devices and cables, but the result remains the same. I am paying for 1000 Mbps, yet the real speed I get is barely a tenth of that. This is a clear case of incomplete and misleading service delivery. I urgently request that this issue be resolved, without shifting the responsibility onto the user through paid technical visits, and that the promised speed be provided as advertised. Otherwise, I will exercise my legal rights and take this matter to the appropriate authorities.
I am a Turkcell Superonline Fiber internet user. Since my 200 Mbps subscription's contract period ended, I upgraded to 1000 Mbps by paying the price difference during the renewal. However, since the upgrade, I have not seen any change in my internet speed. When I call customer service, they claim I’...
I've been using Turkcell Superonline Fiber for about 10 months now. My package is supposed to provide 25 Mbps, but the actual internet speed I'm getting barely reaches 1.5-2 Mbps. While speed tests show no issues (as seen in the screenshot), the actual download speeds are terrible. Instead of 25 Mbp...
I have a Turkcell Superonline 1000 Mbps internet subscription. For the past 10 days, I’ve been experiencing constant disconnections and download speeds measured in kilobytes. I’ve repeatedly called customer service, and online troubleshooting was attempted but didn’t work. A technician came to my ho...
Turkcell Superonline has not been able to provide internet service for 10 days. If this is what they call fiber speed, we're in trouble. I don't care about the issues with their subcontractor; that's their responsibility, not mine. We provided two phone numbers, yet they claim they couldn't reach us...
I am a Turkcell Superonline fiber internet subscriber. When I started my subscription in July 2025, I signed a 12-month commitment stating that the first two months would be free and the remaining ten months would cost ₺600 per month. In the first month (July), I was billed ₺100.50, which was explai...
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