I think it is right because it is necessary to know can this method can be used by Xwin
Which method precisely do you mean? You did not describe it so I just assumed there is no difference.
any of methods. Also, I am interested If someone has several accounts and betting on different variants is it cheating? will users be punished for this?
I guess, they won`t, because it is very hard to proof that someone of the users has more than one account