Turkcell Spam Calls and Messages - Gambling Sites Nuisance Block

I use a Turkcell postpaid line, and for about two months, I have been seriously disturbed by messages and calls from gambling websites. Every day, at all hours, I receive constant messages and calls from different numbers—usually starting with 0850—and from similar-sounding names. This situation has disrupted my peace and made it difficult for me to use my phone comfortably. I haven’t contacted customer service yet because I believe Turkcell should automatically block such spam and nuisance numbers. I request that all spam numbers be collectively blocked and that a permanent solution be provided to this issue. My contact number is 5431****77.