Disappointed with Truworths Service

I purchased an evening dress about 2 weeks ago. It was a gift for someone. I had first tried on the dress at the store as the person I purchased it for is the same size. The tag inside the dress was also bent and when I showed the lady at the change room she said it's fine. I took it to the till and paid and I did tell the lady this is a gift and she said no problem and handed me a gift receipt as well. I also showed her the tag and she said it's fine. I then gave the gift to the person who was going to use it. When she tried it on she showed me that the seam is opened on both sides. It also did not fit her on the top. I took the dress along with the receipt to return today.

Firstly the cashier spoke in a rude tone. I told her I'm here to return. She took the garment, turned it inside out and inspected each aspect of the dress. She stated to me that it has been used. She showed me crease marks and indicated the tag which I told her was like that when I bought it. She then took the dress and said it is under review. I am extremely disappointed at how I was treated. I do understand that people Maybe use and return dresses but this was not the case. And I did not appreciate been told that that I used the dress. I have been supporting truworths for many years but I assure you I will never return to a truworths store again. I was embarrassed and felt as though I'm a ******** in front of a store full of people. Is this how you treat customers? They told me they will give me feedback by the 30 of October regarding the review and no feedback has been given. The call centre is always too busy to answer. This is the worst customer service I have ever received.