Dollar Tree

10/13/19 in Belleview, Fl. The cashier was apparently upset that she was having to refund a lady's items and ring some of them over again. I was next in line. There was only one other cashier open and she had at least 7 or 8 people in line. The cashier said she was going to be a while and I needed to go to the other register. I said the line was too long and I would wait. After a couple of minutes she yelled at me and pointed her finger in a demanding manner that I go to the other line. I said that line is too long. She said, "Well, I can't help that." I said, "Well, I can, I can just leave." She replied back and said, "You can do what you wan't." I said, "This is the rudest store I've ever been in," and I left. This is the third time I've ever been in this store. One time was more pleasant and another time a few months ago was an unpleasant experience. Same as every time I've been a Dollar Tree, the lines are long and not enough cashiers. This time there was only one cashier and at least 15 people in line. There were two other store employees leaning against a wall talking and didn't offer to help. After waiting in line for about 20 minutes I made it to the counter. I told the young lady she needed some help. She said, "Why, do you want a job?" I said no, but people shouldn't have to wait in line this long with only one register open. She said, "We're doing the best we can." I said to myself I wouldn't go back in this store in Belleview again, but I did on this date. I can now say for certain I will not be back to this store. On another observation, this store is always messy with boxes stacked in the isles. What ever is causing poor customer service, whether it's low to poor staffing, or bad management, it should be looked at.