Review on Sunbeam Quilted Fleece Heated Blanket by Warrick Infinite

I'm always cold so I was very excited when this blanket finally arrived. It worked PERFECTLY at first. I carefully read the safety manual and instructions and designed the blanket accordingly, 1 , 2 etc. up to high at 10) varied significantly in heat and matched very well with the amount of heat generated. I like everything on the hot side, so I was pleasantly surprised when 7 was the highest, which always made me feel snuggly and happy. The duvet also warmed up very quickly which was extremely impressive. I really made friends! I've had the duvet for about a month and a half at this point. It doesn't get more than barely warm, even on high power - which I've never had before because it made me sweat at that setting. I have carried out the test recommended in the instructions and safety booklet to verify the operation and confirmed that its performance has almost completely deteriorated. I'm so sad. I really got used to and loved this little blanket and now it doesn't work anymore. Possibly worse, I've just noticed that it gets hot right next to the cord from time to time, but nowhere else, and I have a feeling it's probably unsafe to use anymore. Unfortunately I cannot recommend this duvet at all and will be sending it back :(