The maintenance reported earlier has now ended:
We have been notified that AT&T will be performing maintenance on their billing platform at the time specified below:
Start: 20th May 2010, 23:00 PM PDT (21st May 2010, 07:00 AM BST)
Ends: 21st May 2010, 06:00 AM PDT (21st May 2010, 14:00 PM BST)
Billing will be affected during this time. AT&T users wanting to purchase content will be offered alternative payment methods.
On behalf of the operator we apologize for any inconvenience this may cause.
Bango customer services