Just an update on the story...
After I went home I felt bad that I didn't tell my gf that I have enough funds in the CashX card. Since I got a check from CCBill I decided to go to my bank and deposit the money. Then I drop by the mall on my way home and use a real credit card to buy her that shoe.
She was extremely surprise and happy and jump for joy like this:
Unfortunately she have her cloth on. But at least I know tonight my wet dream is going to come true if you know what I mean
.