simple thing and worked for me:
1-make new account
2-login with the new account
3-level hack BEFORE PLAYING
4-Play 1 round.
5-Profit?
you can change name in 4D1 UCP.
NOTE: you need a 2nd email for a 2nd account.
in my case:
you can just go to UCP on old account, change name, and change email to random typed email(Just smash keyboard).
yes this is my first post, I only made it since I know there are other people out there who are facing this problem and want to have fun too and save time.
I won't be active on this topic/ these forums much, but I just wanted to help ^_^