I am the second hand owner and the first owner did the hack back

At the beginning I said it was not a dummy email, I reminded the buyer not to access any security before 7 days and just change the password. The email and recovery phone number have been filled in on my device. I have provided evidence of the recording of deleting Google from my device. It is not a dummy email, I explained it at the beginning and the buyer messed around so that Google became inactive and returned to the first owner and I no longer have access to the email. I have tried to contact the first owner earlier, I was also blocked and I had the opportunity to buy an account for the second time with him and the account I bought a few days ago was also hacked back by the first owner. and all my data was lost because it was reset by the first owner.

You and I were hacked back too, I've tried to contact the first owner earlier, he blocked me, I bought an account for the second time with him, but I didn't have it for 2 days and he immediately reset my Android device from his device