Bought **** ring

I was so disappointed with the service I got from the stuff Tshabala boitomelo and acting manager.i brought a silver ring for R400 it was written 925 and it didn't last even 4days then I took it back they told me they have nothing to do with the fading of the wring I bought it @ my own risk weres their receipt state that the staff should explain everything about the product before they sell it for you the manager just left me hanging without any help boitomelo took the ring with an attitude and tell me he will pay me month end