Google Fails to Restore Hacked Gmail Account

I am writing to you about a serious security issue with my Gmail account. My account, associated with the identifier 7109925325, was hacked, and today I noticed that the recovery email address on the account has been changed without my permission. After realizing the situation, I tried to recover my account using Google’s account recovery steps, but unfortunately, these attempts did not work, and I still do not have access. Since the recovery email has been altered by the attacker, it is very difficult for me to verify my ownership of the account through the standard methods. I request that my original Gmail account be recovered and returned to me, and that the hacker’s access be completely blocked. I also ask that the suspicious activity on my account be investigated and that any necessary security measures be taken so that this does not happen again.