Deja Vu Cosmetics Refused to refund on unopened products less than 30 minutes after purchase Las Vegas Nevada

I agreed to purchase the nail kit for $29 but the salesman did not stop there. He kept adding more products until he had gone through the entire display. My total ended up being over $200. That was really a lot more than I could afford but the supply was supposed to last me an entire year so I thought OK the amount is relative. I paid for my purchases and left. I began to regret that decision almost as soon as I left. When I went back to the store to ask for a refund I was informed that my receipt states that all sales were final and that no refund would be given. When I went in search of my receipt I realized that I had not been given one. I told the clerk that and he said that I would have to wait until my salesman was done with another customer. I waited and attempted to explain my decision but he kept insisting that the product was good and adding more "fee" stuff to the bag. Finally I just picked up the bags and left. I went to a quiet area called my bank and put a stop payment on my check. I walked back into the store put my bags on the counter took a picture of the bags and walked out. On the way out the clerk asked if I was forgetting something  but I just smiled and kept on walking.