Poor Service

I purchased an electric blanket on 10th June and after a few days of use, the lights wouldn't come on so I took it back for refund or exchange. I was informed that it would have to be "sent for repairs" so I very unhappily left it there. I paid in good faith to be warm and now I was cold. After the prescribed time had elapsed, I still hadn't had a call so I went in. The Manager phoned up the supplier and told me he would have an answer later and would call me. This didn't happen. I waited another week and went in again. This time I was told that he'd only "know on Monday" as the woman on the supplier side was off that day. So now he's promised to call me Monday but I'm sure he won't abd that I'll have to make a 3rd trip in. He wouldn't give me his cell number. I'm aggravated and feel helpless. I expected PICK 'n PAY to be better and I expected a refund or a new blanket, not just to be left hanging for what has become over a month.