Two factor authenctication

Hello! im having extreme issues with logging in to my old account
I have made two factor authentication on that account a long time ago, and now i bought a new phone, i can't enter the code with the authenticator app, it asks for some kind of a QR code, and the worst thing is that i forgot the email the account was registered to.... so i can't use your two factor authenctication removal option too... what should i do? can you remove my two factor authenctication or can you help me in some way? or atleast tell me what email the account is registered to, so i can use your option for 2FA removal.. Thank you, in advance!