Pulled up to stores Gas Sign said 2.43 per gallon. When I got my receipt there was an additional $.18 cents for Use Fuel Rate???? Which was charged to me also. I have lived in Arizona and have never, ever scene this or been charged this ridiculous fee for gas. I was expecting $2.43 per gallon but I refuse to pay for a secret amount of .18cents. I want an explanation along with a refund!!!