Return and refund for trimmer causing irritation: order 1965

My trimmer was delivered on the 3rd of July and I immediately made use of it for the first time. I suffered irritation after the first use. Attempted cutting my hair again after a week and I still suffered more skin irritation - clearly this trimmer does not work for me. I have since been trying to get hold of Scapegear through 3 emails with the intention of returning the trimmer and a refund for it however, my emails have not been responded to.