Free Fire UID Lost After Facebook Account Disappeared

I am writing about a serious problem with my Free Fire account linked to Garena Free Fire support. I used to play Free Fire on an Android device with Facebook login. Two years ago, I was playing the game at night and everything was normal, but the next morning my Facebook account had completely vanished and I lost access to my Free Fire account. My hacked Free Fire account had the UID 984‑655419 and the in‑game name “Shikto”. Since the Facebook account linked to it disappeared, I have not been able to log in again or use this account. Later I also changed my device, so I only have the UID information left. I kindly request that my Free Fire account be investigated and, if possible, fully recovered and returned to me. I would like to continue using my old account and the progress linked to it. I ask Garena Free Fire support to review the logs and ownership details of this account and help me get it back if recovery is still possible.