Poorest service from Game East London

I bought a Hisense fridge at Game in Vincent East London, in 2017 last week I was away for a week and when I came back my food was a mess the fridge is hot and not cold, had to throw everything in the fridge and the entire apartment was smelling. I went to Game store in east London in Vincent that's where I got terrible service and the manager told me I should call Hisense. I did not purchase the fridge at hisense I don't even know where hisense is and my slips are saying Game, and from the manager to store manager is was just bad poorest service. Till now they haven't called me and I'm buying take aways everyday 3times a day, my expenditure is more than the price of the fridge at this point in time, what is the purpose of garanuntee and warranty if we get this bad service can they just come take their fridge I don't want it anymore.