BUYER BEWARE! Dont do business with these people. You will regret it everytime you get in your car. Unless you are okay with businesses changing contracts mid transaction and refusing to let you look over the car once complete. If that sounds like some where you would spend money then by all means go for it. There is a special place in hell for business who practice dishonesty and cheating. They will go there. Save yourself the headache and go to a mechanic who wont change their policies and promises, no one deserves to be treated like that.
Edit: They dont accept debit / credit cards because they get charged for using the machine that they have in their office. So yeah...