Free Fire Old ID Lost After Gmail Transfer

I am having a serious problem with my Free Fire game ID that is linked to my Google account, and I am requesting help from you to recover it without any extra payment. My Free Fire ID was originally linked to my own Gmail account, but later it was taken and transferred to another Gmail address without my permission. Now when I log in with my Gmail, I only get a new Free Fire ID instead of my old, original account. I have attached a screenshot of my Free Fire profile to show the account details. I live in Sri Lanka and I am using a Sri Lanka Google account. I do not understand why I should pay any money to get back my old Free Fire ID, because it was already my account and it was taken without my consent. I kindly request that my old Free Fire ID be restored back to my original Gmail account and that this is done free of charge. I also ask you to investigate how my account was moved to another Gmail and to secure my account so that this does not happen again.