Microsoft Account got hacked

Hello my personal Microsoft account got hacked last week and i have been trying to do anything about it
since then but it seems like the stupid AI phone support just understands nothing of what i'm talking to it and the official microsoft help pages for login and account problems also just do not help me at all.

So my question is now, where and who can help me ?
That account has bought games and apps in the store and so on. It cant be that all that is just gone now.
I use 2FA and all that but it did not helped at all and i have no explaining for it.

If anyone can help me in any way, it would be nice, thanks