Game stores refused to do a return on Ryobi pressure cleaner

I purchased a Ryobi pressure cleaner online that was defective (it did not produce high pressure). I went to the game gateway store to return it within 7 days and they refused to exchange or credit me. They indicated that ryobi has its own return procedures and sent me to their assessment centre which was closed and only opening in 2 weeks time. Game stores is not taking the liability of dealing with the supplier and is not abiding by their returns policy. I am basically stuck with this defective item depending on whether ryobi will repair it or replace it. I will never purchase from Game stores again because they do not abide by the consumer laws of SA. It’s not the first time they have made me deal with the supplier so I will buy directly from suppliers in future.