Under Pre-paid's "Charges & Payments" there is a link to modify the credit card details, but nothing I can find lets me delete it.
This was possible in the past.
@act131241 Thanks for confirming!
Are you using your phone number as your username when you log in, or are you using your e-mail address?
I'm using my phone number. Still no luck.
this does not work!!!! very annoyed at this system. will call in to get this fixed. you fix your website!!!
***Edited to remove private information***