Paid 50% deposit, he cancels and flees with cash

Commenced a building project with said individual and his company. We kept increasing the scope of the project and kept paying 50% deposits along the way until his sub-contracted workers approached us directly for funds as they had only been paid a diminutive amount. This was an immediate red flag to us. Delivery & installation of the final contracted piece of work (our ceiling) also stalled for 2 weeks as excuse after excuse was made about non-delivery. In the final call I made to Johan (Sol) Pretorious, he went into a rage when I mentioned his non-delivery and failed commitments and swore terribly and incessantly. I indicated I was not going to put up with the abusive language at which point I hung up. He called back repeatedly and I started off by stating that if he continued his tirade I would simply hang up again until he had calmed himself down and treat us like a customer at which point Johan (Sol) shouted at me that he would return our money and that he was cancelling the contract, which I immediately accepted. Later that day he started to badger my girlfriend with threatening calls. Sadly not only did he run away with our deposit of R15k but we ended up paying his crew too