Greyhound unhygienic buses

The buses on the Butterworth- Johannesburg/Pretoria route are always stinking of old mould...very uncomfortable. No Aircon... people are sick there a lot of airborne deseases out here...atleast give your biggest clients the benefit of hygiene. Consider our health...I boarded in Pmb and couldn't sleep a wink since we left...I suffer from irritable sinuses and sensitive lungs...all we were inhaling is mould,!!! For a bad 7 hours. You losing it.