Corner Store

I have been to this station many times over the years on my trips to Denver & beyond. No problems til last night. About 11PM, Mom & I were bringing 2 cars back from Denver. Stopped for gas. Filled one car, paid cash, got a receipt. Then we decided to fill the other car. Gave the young man at the register a $100 bill, he didn't give me a receipt, then shorted me $11 on my change. He insisted the change was right when I came back in to get my receipt & tell him of his mistake. I wrote a letter to the Owner/Mgr. of this station, asking them to make it right. If not, there is a new Pilot station across the street that is cheaper.