Hmm it didnt work with 0000? in store it works dont know why it wouldnt work in atm. Maybe its the 1011 part that stays the same... not the digits that change. If digits change they are calculated for that card...if track 2 iscnt changed it will work with anything.. Interesting anyway it is probably just the format that needs to be right yymm1011 and however man digits after..I will do some tests