I told you plastic means. The credit card that piece of cards on the material science? Its a plastic nature?

I have used the credit cards on UB on-campus activity.

Star Bucks, but you buy things inside the UB Bookstore. The textbook, and return, you re-seller back....my money back? I thought you remember there is a PCAT situation. 

I tried on the UB textbook business....meaning you buying the Amazon to sell flyers on UB. I might have done a few times. Not that much textbook things. But I done it.