Recover Free Fire Account Linked With Banned Facebook

I am writing to report a problem regarding my Free Fire account, which was linked to my Facebook account. My Free Fire UID is 4293900680 and the nickname of the account is ༄●⃝BD乡SOHAG࿐. This account is very important to me because it is around 4 years old and has reached Level 59. The Facebook account that was connected to this Free Fire ID has been banned and, according to the information I see, appears to be permanently deleted from the server. Because of this, I can no longer search for or access that Facebook account, and therefore I cannot log in to my Free Fire account anymore. The last time I was able to successfully access this Free Fire account was in 2022. Since then, every attempt to recover the account has failed, as Facebook shows that my account cannot be found. I kindly request your help to recover my game progress by unbinding my Free Fire ID (UID: 4293900680) from the deleted Facebook account and linking it to a new Gmail account so that I can access my Free Fire ID again. I would be grateful if you could review my situation and assist me in restoring access to this long-term account.