I visited this Shell station, possibly a franchise, who refer to themselves as "Shady Oaks", located at 24905 US Highway 281 South in San Antonio TX, zip code [protected], phone number [protected], on September 1, 2016. I purchased 3 items for a total price of $6.46. I received $3.54 in change. However, I gave the cashier a $20.00 bill, so I was shorted $10.00. I folded the 3 one dollar bills with the coins and put them in my pocket without paying attention that I had been shorted. The cashier did not bag my items, she did not count my change out to me, and I had the sense that she was hurrying me. I discovered the mistake when I got home which was about 10 miles away. The next morning on Friday, 09-02-16, I returned to the store and explained to the Manager (Jay) what had happened. He was very cooperative and seemed to be genuinely concerned about the cashier's lack of "skills"and my missing $10.00. He hinted that she may have been stealing money since her register should have been $10.00 over and rather it was $10.00 under for her shift. Jay said, (and I quote), that "it wouldn't be the first time", (end quote), possibly referring to her or just past cashiers in general, I do not know. Jay said that he and the owner would review the video from a camera located over the register and would contact me with the results. He never called. I called back on Saturday, 09-03-16, and I was told that Jay would return on Tuesday, 09-06-16. Tuesday came and went, and again, he never called. I called the store again on Thursday, 09-08-16. The clerk said "that Jay was not in and that he did not know when he would be in, that day, or any other day." I was sure at this point that Jay was avoiding me. Today is 09-10-16 and he still has not called. I truly believe that I am the victim of theft. This store is located in a very isolated place ( about 10 miles south from downtown San Antonio) and I would assume that around 90% of their business is from locals who live within a 5 to 6 mile radius. This cashier would probably have known most (if not all) of her customers and therefore since I was not a local, or a repeat customer, she would have probably seen me as a traveler, someone who might be miles down the road before they realized that they were shortchanged, or in other words, a good "target". And since I never received a call from the Manger, Jay, who could have at least called to give me an update of his investigation, and who is obviously dodging me, then I have no choice but to assume that he too is involved in this theft, and that I may have been just one in a long list of people who are being shortchanged at this store as they travel up and down Highway 281 South.