Sorry for the duplicate post as I posted originally in a [Solved] thread.
I just purchase a SIM from carphonewarehouse but did not have any chance to enter any security question/answer. Now I am stuck at registering for a new account with Virgin Media due to unable to provide a correct answer to a blank security question. I understand that the Forum Team have been helping with the same issue. Could you please help? I would need to port my number soon as the PAC is expiring soon.