I am confused about coupons. South Street sends me coupons and I appreciate them. But,when it comes to using them, I can only use one per visit. This is what Logan of South Street told me. My question is what if I come in say 3 separate days vs one day for 3 serparate things done. Couldn't I use a coupon for every day. i.e. let's say I had brakes done on Monday, Tune up on Tuesday, and radiator flush on Wednesday. And let's say I had a coupon for each one. So if I come in Monday,Tuesday , and Wednesday I could use a coupon each day. But, if I have all this done in one day, I can only use one coupon. I don't get it.