On mine when that screen comes up between the 'Next Subscription plan' bit and the 'enter registration key' bit I have a whole section telling me about my billing info, ie. card name, address, first 4 numbers of the card Im using and then theres an edit subscription button and a cancel button.
I can only guess that you dont have them cos youre account is flagged as 'Provisional Active' and not 'Active', however what this actually means I have no idea.
I'd probably suggest ringing customer support to be honest.