Worst service ever, overated and apathetic - 10 hour delay

I had the worst start to my festive holidays thanks to Greyhound. I booked a ticket for a relative at more than double the normal price and the departure time was supposed to be 2030 on 22 December from the JHB Park Station to Bulawayo in Zim. The advertised arrival time was favourable as the passenger had to make another connecting trip to another small town in Zim. Seeing that there was nothing happening when the time came and asking fellow passengers on what was going on, we were informed that they had received SMS's at about 15 mins before departure informing them that there was going be a two and a half hour delay . Not everyone got the SMSes including myself. At 2310 we then asked the greyhound staff who told us to "relax" as the bus would arrive in 15 minutes. They continued adding 15 minutes upon 15 minutes in their excuses. I tried calling their call center with no success. The passengers got angry demanding to speak to someone who would listen to their complaints but they were told there was noone was there as it was "late at night" so the relevant persons were sleeping. Their staff kept on laughing at us, saying they also did not like being there. I left the station at 0100 the next day and tried again to get information on departure but with no success. I ended up calling Greyhound Zim at 1000 who told me that the bus had left at 0500. This means that the bus will arrive at its destination very late at night thus the passenger will not be able to further proceed as planned but will have to incur additional expenses in booking a hotel. No communication- I am very disappointed and would not use their service again.