Yes, obviously it's the same e-mail address for both accounts. The message I'm getting if I try to register with my internet account is literally that the e-mail address is already registered to my mobile account.
I'm having the same issue. When I log in using my e-mail address, I only see my mobile account. If I try to register using my internet account number, it says the account is already registered to my e-mail address and I can just log in--but again, wh...