Exxon gas station Gas pump fraud augusta New Jersey

Got gas on my credit card at this gas station.. Sign posted for 2.64 per gallon.....checked receipt and found out I was charged 3.69 gallon. Went back to station, I asked how much gas was on credit card....the manager told me 3.69 gallon. I asked why the sign out front said 2.64 gallon...he replied, oh.....yes, it's 2.64. He realized why I was questioning.. I asked why I was over charged..he asked how many gallons I bought....and he replied I wil give you 13.00... I went to take my credit card receipt and he said I would have to give him receipt for the refund.  He refused to refund money without me leaving receipt..

beware of this gas station...when I was there, I observed all pumps working , so there is about seven other people who were scammed.. And possibly alot more.....