Greyhound buses is complete nonsense

The worst bus ever ,the bus had problems before we even left Joburg ,driver continued driving and risking our lives, when we asked they said that the bus doesn't want to change gears.We have stuck now for more than 6hours ,the mechanics are failing to fix the problem ,nothing is happening, no one is even coming to rescues us!Some of us need to be at work , Greyhound should close down again bcos their service sucks ,from Joburg to Colesburg the bus has mechanical problems and is not safe