Kpn Travels — ac not working and spare bus is not a sleeper as booked

I am murali anandh i had my journey on 29 dec 2018 from ooty to chennai starting at 6.30 pm from ooty in ac sleeper, my seat number is l3 and l4, i thought after mettupalayam they will switch on the ac but we noticed ac is not working properly after five hours it started working for one and half hours and the bus became break down close to 1 am. The driver after some time get us the spare bus, a semi sleeper and he told at salem you will get a sleeper bus. But as he told we didn't get any bus like that and with the spare bus we are traveling to chennai. We are at 4 am it shows 320 kms to cmbt. Most of them preferred sleeper because of their age or health. But as promised please operate and try to give good service.