Total Sports Vincent park has not refunded my money!!!

My name is Zikhona Monakali, I bought a TomTom runner 3 watch at Total Sports Vincent park and it wouldn't pair with my cellphone. When I called the TomTom call center they said I had to upgrade the software, I had to pay extra somewhere else for that to be done but the problem was still not fixed...When I started using the watch 2 days afta I bought it I noticed that it was hardly an hour and the battery was dead, I thought it was maybe bcz I didn't charge it enough, I charged it overnight...the next day the same thing happened, so I sent it back. When I got there they said they don't have enough money so I should come back later...I went back there before closing time (using EXTRA taxi fare mind you, because it is NOT on my way home) when I got there they still they don't have money. I then left them my cellphone number to call me when my money is ready!!! It's now day 3, I have been trying to call them to check if my money is ready...but dololo response!!! I WANT MY MONEY TOTAL SPORTS!!!!