Kpn Travels — re: inconvenience due to kpn refund my full amount

On the date of 03/05/2018 i booked kpn from mettur to chennai 9.30 pm ac sleeper. Its delayed that thing is acceptable but they are telling me to go in the non ac bus upto thoppur bypass after that we will arrange ac sleeper and iam accept that thing also but no bus is arranged until 12o clock its too delayed and after that ask me to go in non ac itself.
1. I paid for ac they take me in non ac
2. I am booked 9.30 pm but you are started here at 12 am at thoppur
3. I am booked fornt lower but iam sleep on last upper total sllep is gone
By doing like this how can i reach the designation properly and how can i come next time.