My account has been banned for more than ten days. Can you give me a reason?

I bought an account with money. There are no cheats or scripts. There is also no real money transaction. It has been sealed for more than ten days. Can the official provide a reason? I spent money to buy your game account. I played for less than a month. It was sealed for more than ten days, and several emails were sent without any response. Can you give me a response?