I Can’t Log In My Free Fire Account

I am from Bangladesh and I am writing because I lost access to my Free Fire account that was linked with my Facebook account. In May, another person hacked the account and added their own Gmail as the bind email, and after that I could no longer access the game with my Facebook ID. Right now I cannot log in to the game at all using my Facebook account, and the bind Gmail is in the hacker’s control. This account is important to me and I want to recover it and secure it so the hacker cannot use it anymore. I request that my Free Fire account, which was originally bound to my Facebook, be returned to me and that the hacker’s Gmail bind be removed from the account. I also ask you to help secure my account so that such unauthorized access cannot happen again.