Truworths worst customer service!

In October I shoped at Truworths Promanade mall in Mitchells Plain, being almost 9months pregnant I didn't feel like trying on the few items I bought and rather decided to try it on at home where I'll be much more comfortable. I had a wedding to attend in the next 3 weeks.....one of the dresses I bought was the 2nd last on the rail and when I got to the counter there was no label on it hence the cashier had to print a label for it. I gave birth before the wedding and with in a month I returned the items I bought because it was of no use to me. At the till I explained to the cashier the dilemma I was in and why I returned all the items with labels on. The red dress however didn't have one on but I had the slip the cashier printed when I purchased it. She then took the dress to the manager and said the dress was worn and smelled like arm pits, I was so embarrassed as I didn't wear or even try on the dress. I then said to her im sure this dress was put back on the rail because it didn't have a label and I swear I didn't wear it or even try it on. I returned everything with the slip and labels, the manager said she will get back to me as the garment must be sent away for assessment. My phone went in for repairs so I was not available but this week I called them and they said unfortunately the dresses was declined ? I was so shocked because again I did not wear the dress. I said to the girl on the phone, does the fact that there was no label on the dress mean anything. What if someone purchases it before me and returned it. I have no use for a dress that is to sizes to big for me and its R699 that will just go to waist...I didn't expect this from Truworths as I had this account for many years and never had a problem. I said to her I'll take this further cause as a customer I have a right to complain and she said im welcome but I'll there's nothing that can be done, I didn't appriciate the sarcasm from her nor the bad policy where only the staff are right.