Not being able to register your card can happen sometimes. This can be down to a number of factors but mainly because we take every precaution to make sure we are safe - which includes strong credit checks!
If you're not managing to get up and running, don't worry! Just get in touch with our support team (firstname.lastname@example.org) and they will be able to advise you.
Make sure you quote your username, full name and DOB when you do! :)