Rite Aid review: payment not received and unethical behavior

To whom it may concern,

I have a very serious complaint about one of the employees who works during the night shift at rite aid. In the month of August (I don't remember the exact date), I had purchased two items that were on sale for $4.50 in total (two cans of coors light beers) during the midnight hours. I approach the checkout area, I gave 5 dollars to the clerk, and the clerk working there did not give me my change. To make matters worse, he insisted that I did not need the change. Unfortunately, I do not know his name, and the only description I have of him is that he is a well dressed tall man. He has done this several times in the past with myself, and only myself, and I feel as if he is judging me by the way I look, and my nationality.