explain to me how this could have happened, I registered with a clean account with no referral. And now it turns out that I'm under referral. And what to do.
Explain to me how you know you are under a referral. Then PM me the user IDs so I can take a look.
now I can't use BTC address and email address for pure registration.
A BTC address is not required for registration. Only one account is allowed per email address.