REFUSAL OF REFUND

I sent someone to buy me tackies on Friday 21 AUG 2015 and then he bought the wrong size, I go back yesterday Sunday 23 AUG 2015 to exchange,the size I want was out of stock, they were left with one which was on display and its too dirty, asked for my money back the guy who was working on Sunday was very disrespectful doesn't know how to talk to a customer, he said he wont refund Cos it was on sale. there was only two people working, a guy who refuse to give me his name and a lady by the name sizakele ... the guy also told me that if I don't decide to take other things in the store in five days they wont help me after that. I did go after one day of purchase but I didn't get any help what I get was being disrespected...I am angry by the way he treated me or talk to me now I want my money back.<br> <br> Looking forward to hear from you.<br> RUDZANI