In drive has ***** drivers

Yesterday I requested a ride for my kids, The drive came and I paid him R60 for the ride. My kids were going to my sister's house, my daughter had a R190 in her purse and when they arrived at my sister's house the driver took R170 from them and they were left with R20. I am Soo disappointed as the driver was an old man and seemed trust worthy. The driver drives a White Toyota Etios and the registration number is CAA309580. I tried to call him numerous times but he didn't pick up my calls. And I rated him before I had the incident