certegy check services denied my check, written at a sears appliance/hardware store while trying to purchase a lawn mower. called the 800# and was told nothing wrong with my account, that i fit a computer model to be a risk. i asked for a written letter of denial and did receive one. i made a copy of same letter and sent to sears holding company, attention to their ceo. i will not shop at sears or k-mart or for that matter any other business that does business with certegy check services. if enough people take the time or tell their friends to stop shopping with businesses that do business with certegy, just maybe, certegy can go the way of the doe-doe bird.