If you think you have been unfairly banned in Metin2 TR, the first thing you should do is to contact the game's support team. The support team must state the reason for the ban and what rules were violated.
You can also make a defense that the ban is unfair and ask for your situation to be re-evaluated. During this process, it is important that you accurately describe all your activities in the game and provide evidence.
Remember, it is important to be respectful and patient while doing all these procedures. It may take some time for the support team to agree with you.
If you are having difficulty making a defense that the ban is unfair, you may consider getting help from Metin2 TR's community forums or İtempol.com. Good luck!