This location is convenient. We've been going for quite some time. We always present their coupon. At least 50% of the time, the clerks fail to take off the coupon. They will not refund when it is pointed out the coupon was not taken off. The manager has taken the attitude this is a waste of her time. It seems to be this stores practice to refund the difference next time customer comes in (meaning we have monitor their mistake) We will go in one more to collect our refund, and we will be looking for a new cleaner