Aggie Crossroads Stole money off my debit card /over charging College Station, Texas

I sent my daughter to the store today Sep.14 2011 to get a bar of soap and her a bag of chips.
I had 13 dollars and change on my debit card. I told her while she was there to get a reciet from them, She asked several times for a reciet and the arab guy act like he didn't know what she was talking about.

 I called my card to find that my purchase was 12 dollars and change just for a 1.99 bar of soap and a bag of chips that cost between 1.49 to 2.00 dollars. Now that doesn't add up.

 I also sent my friend to the store to buy me a pack of cigarettes and two can of beers. My card had 19 bucks. My pack of cigarettes caost around 4.39, my beer 1.59 and his beer 2.05 now that doesn't add up they also didn't give him a reciet.

The guys working in the store is ripping my card off and this is the second time this has happened.