eFootball Account Linking Issue – Account Suddenly Not Linked

I am an eFootball player on Android, and I am experiencing an issue with my account linking. A few days ago, my game account was successfully linked. However, when I logged in yesterday, I noticed that my account was suddenly no longer linked, even though I did not make any changes or take any action. I do not understand what caused this problem, and I am concerned about my game data and access. I kindly request that you review my account, determine why the link was removed, and resolve the issue so that my account is properly linked again and I can continue using it securely.