Exploitation of customer and very inefficient customer service

On the 23rd of September I book a bus citiliner plus which was departing from Eastern Cape Mthatha to Johannesburg , and my pick up point was in Pietermaritzburg, to my surprise and disappointment, I was told I would board a citiliner instead of citiliner plus . Firstly there’s a difference in pricing between a citiliner and a citiliner plus , this means that they overcharged me and did not give me the value I had paid for , secondly the comfort in the citiliner Is also different as compared to the citiliner plus , the citiliner that they brought had no aircons, and everything was uncomfortable, we are exploited as customers, you can’t make us pay for one thing than at a later stage give us something less than what we initially paid , it’s uncalled for and very unprofessional and totally against the customer protection Act , the drivers in that bus were even taking turns to sleep under the bus where it’s mesnt for the lauggage, can you please refund my citiliner plus amount that I paid since I did not get what I paid for