Customer is not king

I have been back and forth for almost a week with Game over a defected product. I bought a washing machine 4 months ago and it somehow started leaking. Only to find that there was a cut on the rubber that's on the door. Game is insinuating that I am responsible for the damage on the rubber. Am I washing knives in there? And by the way how old am I to do that? I find it offensive as a loyal customer of Game, that they are not giving me the benefit of the doubt as this machine is only 4 months in my care. They opted to believe what the supplier has told them and not what I experienced as a customer. They have not been particularly helpful with trying to solve the problem as I am always the one calling for feedback.