bad customer service

I bought a jacket that was on sale for my daughter on the 28 December 2014. I went home and fit the jacket on my daughter only to find that its a fitting size, I immediately took off the jacket from her and put it back in the plastic. so I got time to return the jacket yesterday 01/02/2015, with the slip and tags still attached on the jacket. the lady looks at me with an attitude, and looks at the jacket as if its dirty and then calls the other lady in the store to come and assess the jacket, at that time im asking them whats wrong with the jacket? they don't answer, the lady looks at it and the other lady tells her that I bought it in December and only returning it now. at that time im so ****ed and fuming, I tell them that my daughter only wore the jacket when she was fitting it . then they tell me to wait for other people to asses it and those people went to the bank. 1stly its month end all banks were full. I tell them but they don't care. I felt so belittled and the fact that there whr 2 of them and they failed to make a decision got me even more ****ed so I left, they had no name tags on hence I don't know their names. im so disappointed as iv been a clt for long and want to