Do not shop at my Tech House

Hi purchased a fridge from My Tech House on 1 November 2024. I cancelled after 3 weeks when the order stilled showed pending and requested an refund which I am still waiting for. I have emailed numerous time and cannot get through to their call center as the call just drops. I have been waiting for my refund but they are not getting back to me. I was informed I need to go open a case against them. People do not purchase from this business.