Bad service of Game N1 City

I have bought a warm blanket less than 6 months I have not really use it much now there is a problem on the blanket, I returned it to Game, because I have a 12 month warranty on the blanket, they refuse to assist me as the supplier says I have not use in the correct manner, which I do not understand as it was working all the time now that there is a problem you are being refused help, or exchange on the item, please be aware of Game as this is not the first time it is happening, as I feel customers should be helped and not refused. Mrs Sharlene Florence ***