Nightmare wedding dress experience

I was very excited when I found the perfect wedding dress at Bridal Room. It was an Oksana Mukha dress, Amadea 2 (and cost R20 000). I ordered my dress end of October for my wedding in April. When my dress arrived I went in to fit the dress and met the seamstress to do final alterations. They had to work in some nude parts and cups. I was not informed when the dress was ready and had to phone several times to find out when my dress will be ready. I got my dress a week before the wedding. Bridal Room told me that they regularly send dresses to the dry cleaners, so I decided to send my dress to Bridal Room after my wedding to get it dry cleaned. They work with wedding dresses everyday, and I was confident that I can trust them with my dress. My mother went to collect my dress at Bridal Room only to find out that they had broken the zip. They said they will replace the zip. Again they promised that the dress will be ready on Monday afternoon and they will phone to collect. This was an empty promise; the dress was only ready 5 days later. When my mother collected the dress, she saw they had sown in another colour zip. The zip was now beige and not sown in correctly. It's clearly an invisible zip but sown in incorrectly by an unproffesional. Their excuse was that the seamstress couldn't find the correct colour. Why weren't we asked if we will be okay with this different colour zip? Would it have been impossible to import a replacement zip from Russia? My mother decided to take the dress since she didn't want them to mess it up even more. A week later when I got my dress I saw that they had done some other sowing on my dress, they worked in seams that was not there on my wedding day. Pieces of the nude fabric sticks out through the net lace and a solid line that wasn't there before is now clear on the outside of the dress. The label is also sown into the dress, and can be seen in the front of the dress through the net. The dress will have to be unpicked and sown again. In reality they are supposed to fix the dress, but how can I trust them with my dress again after this? I sent my dress in for dry cleaning and got a dress back that can not be worn. No one will even buy the dress like this. This is unexceptable. How can they still sell and work on dresses if this is how unprofessional they are? I paid R550 for dry cleaning and got a different dress back. I wish I never did business with them.