There should be someone designated in areas that are trained to fix problems like I had with these new credit/debit card readers. Due to no one at the store I was at couldn't do anything about my debit card being held in the reader. I unfortunately had to cancel that card and get a new one. After 45 minutes of nonsense I canceled the card and left. I shouldn't have to do anything like this because you have faulty equipment. User's recommendation: Find a store that doesn't have the card reader that locks the card.