dude brah DONT use checkers especialy ones from a carding site they will KILL you cards once banks catch on to the the charge and the compnay that has been set up to do the "checking" the card gets flagged and thats a wrap, your best bet is to either set up your own account you use for checking or to just go for it and go for it on a purchase and use that as you check, another method that I was using to check cards for a while was I went into a department store (kohls) and saw posted on the wall a list of 3 800 numbers one with ames next to it the other visa and the master card and below each number was a merchant acount number, basically it was a bank number that the casheirs would use to call in to verify cards. I used those number and merchabt accounts to check cards for over a year, you could keep you eyes peeled for something like this when you go to stores. its actually more common than you think. also google chase merchant accounts card verification phone numbers and call up the 800 numbers and try random 4 digit combos until success.I say 4 digits becuase the number I had was 4 digits
but STAY AWAY FROM CHRCKERS ON DUMPS SITE