Poor Service

I did an instore purchase at Homzy Centurion of a king bed and paid cash on the 27th July and I was told that it will take 3 to 4 weeks. I called their offices on *** since this morning to follow up and am being told that it will take another week with no reasonable explanation, no one can give me accurate answers. I want my money back, I paid you cash and you need to pay me back and will go to another service provider. Apparently store managers do not take calls.