Can't get money back because they can't resell

Good afternoon I was today at legit zevenwaght with a pair of shoes that I bought last week had it on once and it was damaged at the back. I asked if I can get my money back to the cashier this lady jumps in from no where and shouts no no refunds no money back. You can only get cash back if it's not worn so that we can resell it. I asked how can you resell damaged goods then she giggles in my face. I asked to call someone higher than here she said she can't do that because there is nobody there. I asked her regional management number she said she don't want to give it. Instead of helping me out to get the problem solved she keep saying they can't give my money back. On the floor right next to me is a consultant on the floor with her phone a Samsung J1 ace laughing with the manager Natasha in front of me. I walked out with my merchandise and no help or customer service given was the worst service ever. Have the shoe for a week breaks but you can't get your money back at all. The manager Natasha sings a different story than what the slip say.. Disappointed in the service.