Delayed Bus by 6 hours and 30 minutes

The bus operating company is unprofessional. The bus has been delayed by 6,5 hours and they do not care about the inconvenience caused. I missed my transfer bus and all the customer care staff could tell me was to log a complaint on via email and request a refund. The customer care agent was so rude and cut the line before I could conclude the call. It is disappointing that as a customer you are on the loosing end even though the bus company is the inconvenience. To move the travel date they charge a 25% fee even though it is not your fault, you cancel you loose hundreds of rands and you still lose time and money for waiting. Is there a body we can lodge a complaint to?