very very unhappy client

I bought a projector from Game Stores in Trade Route Mall on the 20th of May 2017 and of late it’s been giving me problems switching off while in a middle of a presentation to a point where I had people walking out of my presentation and decided to take it back so I can get a proper projector and noticed that Game does not sell any better kind and looked around and found one and it cost twice the price but it’s of the best quality cause one of my people has been using it for years with no problem ..took it back to Game and they had to send it for assessment and I confirmed if they want to assess to see if it was not tempered with by me and they advised yes ..they now came back advised it was assessed and they did not pick up any problems and asked when I can get my money they advised they will call me to get the projector no money ….adv. the lady it was not supposed to give me problems within 6 months of buying it in the first place and now I do not trust that it won’t again so I do not want it but they do not want to refund me…what happened to

Consumers may return defective or unsafe goods and request a full refund, provided it is done within a reasonable period.

If goods are of inferior quality, unsafe or defective the consumer may return the product within a period of six months at the expense of the supplier.