Goldwagens extremly poor customer service, unreliability and disrespect shocks and disgusts me…

Greetings I recently bought some parts(L+R driveshafts with inner and outer cv joints) from Goldwagen having provided my vehicles details including VIN number. They sent me wrong parts which I returned to them in perfect condition within the timeframe provided for returns. They couldn’t find the correct parts and agreed to refund me. It’s been dragging on for approximately a month now and still they haven’t refunded me. I’ve made numerous calls to their salesmen, supervisor as well as their owner and recently they have resorted to simply not answering my calls at all. The service I have received is outrageously disappointing and infuriating to say the least. My only demand is for my money to be returned considering that I’ve returned their parts in perfect selling condition(unused and brand new) within the specified timeframe. According to Goldwagen a refund takes 3 to 7 business days. I’ve been waiting for about a month now and still my money hasn’t been returned to me and no proper explanation has been made for why they’ve been dragging their feet the whole time. Goldwagen, just send me my money please.