Bad service

I went to Foschini in Eastrand mall and we bought a watch ,when we got home the watch was not working and on the next day, Monday 30/11 i decided to go pass Foschini as I walk pass there when I go to work, I arrived at the shopping centre before 9am and found that the store opens at 9 I went back at 9:00 when I got there the store was still not open until around 10:10, when they opened I spoke to one of the employees asking for an exchange for my watch and she told me to go back to Foschini Eastrand Mall branch, I was very disappointed n called the branch where I had bought the watch from and they confirmed that I can exchange my watch at any branch, I had to leave with a faulty watch, and I had to explain my problem to 4 people who did not help me, I had a proof of purchase and everything that I had purchased the watch with and now my boyfriend needs to take some time off work and return the faulty watch, at the end a store manager was called to assist and told me that she could not help me with the exchange as a purchase was done in my boyfriend's account, who did not even apologise for the inconvenience, I ended up being late for work. I wasted my time and airtime for nothing.