Broke fridge

I bought a Hisense fridge in Dec2017 it gives me problems it has been regased 3times already since I bought it,On the 15 this month It started to become warm the freezer is not working also I had to discard everything from the fridge as it was rotten.I sent several emails and also phoned Homechoice it seems as if the are not willing to help ,They must refund me or give a brand new fridge please