Lack of intrest in customer service

I bought a electic blanket last year May. This year May, the one side of the electric blanket stopped working, so I email customer service on 24 May 2023 and then received an automated response. Then no feedback. On the 30th of May 2023 I send an email again. Then I received a response on the 31st of May 2023 from a agent stating they escalated the matter to the relevant department. On the 2nd June 2023 I send another email requesting feedback and again on the 5th of June 2023. Still no feedback. I find this quite frustrating as I do not want my warrenty to expire without this issue being solved. In the meantime I keep on getting phone calls from Homechoice asking me if I want to purchase special deals. And I have also mentioned to sales people that I have a issue that is not being attended to. This is unacceptable to say the least.