No service and zero contact

I purchased a watch from Matt Arend Time Pieces in cash from their offices in Johannesburg on 4/11/2015. I reported that the watch was not working on 24/11 2015 and did not get any feedback. Eventually after days of phoning I was told to pay R55 and they would collect the watch. The watch was eventually collected on 03/12/2015. I have been trying to contact their offices throughout January and February 2016 when the operator message was that the number does not exist. After posting numerous comments on their Facebook page I received an sms on 03/02/2016 to say my watch was ready and I needed to pay R110 to have the watch couriered back to me. I heard nothing from them after this and was unable to contact them, They also blocked me from commenting on their FB page. Given contacted me via email on 18/02/2016 and said he would have the matter resolve. He requested my delivery address to return the watch on 23/02/2016. To this day I have not received a singel response from them.