REFUSED RETURN

We purchased a bicycle on the 25th of April 2024 for my 7 year old son. On the 26th the bicycle tyre was flat. My husband and I then took it back to Game for return as we were well within 7days of purchase as well as I know that the CPA allows us to return product up to 6 months. I spoke to a manager Calvin John who said he cannot do anything about this because it is the tyre. He then called another manager Chris who said he refuses to change this item as they donot change items on wear and tear. I asked him how can this be wear and tear when the bike was used once. He imp**** that he is an expert and has ridden bikes since a young age. I said well it must be second hand because it break after one use but he said he cannot exchange and settled to fix the tyre which I was very unhappy with as I know my rights as a customer. Now on the 09/05/2024 the chain of the very same defect bike has snapped. Is this wear and tear??!! How are you selling items that break after 2 weeks and say no that the customer must deal with this. This is *****ING!!!! THE ONLY REASON WE BUY FROM GAME IS BECAUSE IT USED TO BE REPUTABLE. IF I HAD WANTED TO RISK BUYING A DEFECTIVE PRODUCT AND HAVE NO CHANCE OF EXCHANGE I WOULD HAVE WENT TO A STORE THAT SELLS BIKES FOR HALF THE PRICE BUT I BOUGHT THIS ITEN AT GAME BECAUSE I THOUGHT I WAS GETTING A GOOD PRODUCT AND DEALING WITH A REPUTABLE COMPANY. I AM TIRED OF BIG STORE TAKING ADVANTAGE OF US ESPECIALLY IN THIS ECONOMIC CRISIS.