Shady contractors ALPbuilding and one time project

I write this complaint as I am very concerned with the type of contractors discovery assign for their projects. They sent through a building company called Alp building in Johannesburg and I dealt with a man by the name of Vincent. He seemed helpful and referred me to a subcontractor that does Alp's projects. I contacted this sub contractor to complete my kitchen. Julian reddy from one time projects. Julian asked me to pay a deposit upfront for the kitchen cupboards and the granite. I did so in good faith after receiving my quotation. It's been 2 weeks since Julian has taken my money, has stripped my kitchen and has not completed the work. Julian has been ducking and diving and dodging my calls and has no interest. In completingthe work. Vincent from ALP building as well has not returned my calls or responded to my messages. Are these the type of contractors that discovery send out to assist in our homes,discovery needs to avaluate their panel as they clearly have unreliable ************ using their name to get jobs. I am appalled that we have such people out there. I would request that discovery look into ALP building