I did MANY of these before parting company. Just because it states that there is a premium pay, it does not mean it is valid. One company, guess who, sent me out on mystery shops to kiosks at gas stations where I was REQUIRED to make a store purchase and a gasoline purchase for the shop to be valid. The problem was that the only thing available for sale in the kiosk was cigarettes and cigarillos. And, tobacco, alcohol, and lottery tickets were forbidden purchases by the client. A good idea is to google the address. If it shows up as a national chain grocery store, you will probably get stiffed.