Hello Bernadette Leahy, and welcome to our eForum!
Hmmm... it does seem rather odd. If it's continually directing you to the prepay page, then it might be an accounts issue
I'm going to send you an email to get your details - if you can reply then we'll be able to look at what's happening to your account, and why the credit doesn't appear to be detected.
Hope to hear back from you soon!
Daz
eForum Team