Hello my wonderful MR family. Wanted to get your advice on something. Im purchase two gift cards from a person on CL for 900 dollars (value is 100). The pins are unscratched. I will be checking the balance online after verifying that the pins haven't been tampered with. If the balance checks out, everything is good to go right? He/she somehow won't be able to report it saying it was stolen and leave me out of 900?