it seems too good to be real, so... I will try with some worthless coins (or almost worthless coins) and I will check the results before a greater investment...  


I can't login because webpage don't let me introduce 2FA authenticator... how can I put my 2FA number?  

Always the same... I put my user, my password and when I try to login as existing user the webpage says me:

Incorrect two-factor authentication code.