Faulty electric blanket

I purchased a king size electric blanket from Edgars in July 2017, Boardmans brand. This year the one side (which is used maybe once a year) just stopped working. Before writing on hellopeter i decided to contact the Customer Service helpline and explained my situation. Mandla Nkosi was very friendly and tried to help but in the end he was advised by his manager to "escalate" the matter to Refunds. Sounds great, except that as Customer Care they don't actually handle the matter. He was told to tell me to go back to Edgars and speak to the branch manager. I asked him why am i being asked to return the item when I have explained the situation to him, and I also commented, basically this phone call hasn't meant a thing. Fact is Boardmans have had a hellopeter complaint in 2017 regarding EXACTLY the same problem. Thus they know about the faulty product, do not note it and still expect the customer to sort it out. I specifically phoned before writing on this site to see if their Customer Service will be a decision turner. Unfortunately they have failed. I will not purchase from them again.