No service feedback after 3 weeks waiting

I purchased a Pure Pleasure Single bed electric blanket on July 8, 2024, from Pick n Pay Steeledale in Johannesburg South. The product stopped working on 05 August 2024. Pick n Pay Steeledale refuses to refund my money, but rather returns the product to Cape Town for repairs. I find this policy to be totally unacceptable due to the fact that I do require an electric blanket during the summer, when it will be returned. Please advise a way forward, as clearly the Pure Pleasure electric blanket products can be defective.