Very unpleasant experience and a crook

We where recently booking an event for my Sons Rugby teams end of season braai, Kobus quotes a fellow parent , I mistakenly paid him a deposit that should have gone to another vendor. We immediately called Kobus and he promised to refund the money as soon as it cleared, on good faith I accepted this and offered to even pay any related cost. Today i called at 8:05 am and he shouted at me saying to call back in office hours ? He is now hanging up any call i make. Please people don't use this man , clearly he has no morals , Still almost R4000 rand unpaid is a bitter pill to swallow! I hope he understands he is taking from a bunch of u11 kids .