When I want to activate my subscription which I have with my mobile provider Yettel it shows popup message with welcome message and that's it. No subscription is activated and there is nothing going on.

When I want to activate my subscription which I have with my mobile provider Yettel it shows popup message with welcome message and that's it. No subscription is activated and there is nothing going on.
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.