My Genshin Impact Account Hacked: Unable to Access, Email Changed Without My Consent

My Genshin Impact account has been hacked! I hadn’t logged into my account for about a month, but I decided to check in when I heard about free 5-star characters being offered. When I tried to log in using my correct email and password, I received a message saying, "Account does not exist." I also noticed that I received two emails recently stating, "Your Genshin email has been changed." I dismissed them as spam and didn’t take any action. Now, I’m locked out of my account and can’t access it through my Hoyoverse account either. I’ve invested so much time and effort into this game; please help me recover my account! 😭😢