Incorrect information and bad service

I am livid with Coricraft in Cresta Mall. The communication is very bad. After I have placed the couch order, the following day I quickly phoned the store to make changes with the couch size. They told me about the checklist I have signed. However, Sandra the sales person said I can change but then now the fabric that I chose has been discontinued even if I did not change the couch size the factory would have asked me to choose another colour. With that information given, I then went to another store of which I found the colour and size I wanted. Now, when I want the refund. I am being told by Zandi the Store Manager, I can’t cancel because of the checklists I signed and also now the colour I want they have it. I made numerous calls and emails producing proof that her staff member said my fabric is finished, therefore I need to choose another colour. Now I don’t want anything from them. I want my refund so I can get better service somewhere else. She then says the Regional Manager refused to authorise the cancellation. Even though fault is with her staff member for emailing incorrect information.