USA GAS at 700 Avocado Avenue, El Cajon, California.

They have pretty much the most inexpensive grass with in Spring Valley other than the circle Market on Bancroft Street

I always buy gas from this USA location; however, I went today and they stole my money. I went inside and I gave "Derek", an employee there $20. He got the money, but did not put gas in the machine. I went back inside the store and told him there's something wrong with the machine, and I did not get my gas. He said that there's nothing that he can do about it, and he claimed that I used my $20 and filled my tank. I told him that I did not and he can check my car's tank, but he told me to stop arguing with me. He was so rude, and he didn't give me his manager's phone number. I was so upset, and if there was zero stars I would've gave it to them.! Very disappointed!