Hi there, I'm having the exact same issue as well - it appears I have more than one account and after I select an account and proceed to the next stage of the process, the page that loads is completely blank and it goes nowhere.
Solved! Go to Solution.
Welcome and thanks for your post @SamW
I am sorry you're also having problems claiming for your reward card. I have sent you a private message with instructions on how you can send us over your details and we'll look into this for you. See: Private messages
Thanks for sending over the details @SamW .
I've processed that claim for you and you'll receive the reward in due course.