Worst service ever

On Saturday 24th November 2018 I made myself a Lay buy at OK Furniture Town centre Mitchell's Plain as I've purchased there before and it's like a family store as my parents has been supportive over many years and therefore I am doing the same however I left the store extremely upset. As I provided the sales lady with my personal details I noticed that the spelling of my name was incorrect and she told me that she will correct it afterwards however I was told to make a payment in the meantime and after waiting for her to assist me I noticed that the documents she provided was not my correct details. I refused to sign as I know it's wrong to sign for something which is not on my name and I felt uncomfortable. I asked her if I could cancel it and do it over again but she told me the cashier's does not have cash but I just made a cash deposit 5 minutes ago. The sales lady told me she will recapture a new one and transfer the money that I paid and after doing that she told me the system will not print anything now. I was confused because I she "supposed to cancel it and do a new layby" and why can't she print anything? I felt treated unfairly I was very patient because it took her almost an hour to assist me as she was helping other customers also. I now only have a slip that shows my deposit but not the other document which has the description of my goods. I am still confused. I have trusted OK Furniture for years but I think it's unfair that I have been treated this way. I trust you will assist me and the matter could be resolved ASAP