Dollar General

I had my electric shut off, so I went to the dollar general and bought a large pack of energizer batteries and some groceries. When I was checked out I wasn't given one of my bags. When I got home I noticed the batteries and bread and bologna were not with me, so I went immediately back and was told the bag was probably given to the customer that followed me. When I talked to the manager she would not give me replacement items or a refund. It was not my fault the cashier was not making sure I had all my bags. That was over 20 dollars and I already can't afford my electric.