Does anyone know how they fix credit cards?
 

Sometimes when I go to the bank and my bank card doesn't work, it's because it has been close to something metal or to the other cards in my wallet. The teller does something with a paper sheet, kinda like swipping it, and then it's fixed. I don't know what it is though, can someone tell me?

My epassporte card is fucked, so I need to try this before wasting time

Google? 8char

Try scotchtape ( clear... ) on the magnetic strip. Works most of the time.

it's just a regular piece of paper