Cvs Pharmacy

Went in last Sunday to pick up and item, and I thought it was overpriced, BUT bought it anyway. Then I was thinking maybe the item really should not cost so much. I did a little looking up online and found everywhere else the same item was half the price CVS charges. I went elsewhere to buy my item. I just went back to CVS to return the one I bought Sunday. Once the cashier realized I had a return her attitude completely changed. I asked if she needed the card I used to make my purchase and she would not answer me. She gave me the return in cash, and just dumped it on the counter with no copy of a return receipt and called for the next in line. Why oh why should a simple return make her so pissy, I have no idea!!! I will never go back there!