I had some money left from several gift cards I used some days ago. I was trying to use them to pay for an article when an error popped up saying "we ran into a problem. Please try again later". I thought it was normal and then when I marked the balance im aiming to use, it says "there is no balance on this code". I refreshed the page and all the blanace I tried to use was all gone. This happened the balance from 2 differents gift cards. Is this some sore of glitch or something? I read something about this happening a few years ago.
