Smelling bus. Cannot breathe in this environment

Good day

I am currently sitting in a bus traveling to Port Elizabeth from Pretoria. The smell in this bus is intolerable, as I am speaking I am breathing with my mouth.

Please urgently assist us, this is health hazardous. I called the customer support department but was only given this to complain, please assist as soon as possible we cannot even eat or breathe here! Somebody come inspect this bus in Joburg, no this is not on. Such a smell entering the bus door its not even at the back.

Urgently assist.

PE Graaf Rainer route bus.