Abhibus Services India — About bus service provider and service

I am not happy with srs bus service. While i was booking my seat, they provided a bus which number is py 01 ch 1633. Date (15/01/2017) client number -[protected], [protected], route (Tirunelveli to chennai). Whatever commitment they gave, but not provided anything. The bus not came on time, i asked him about bus he told quietly, "sorry sir u get bus in few mins", i have waited from 8.40 p. M to 9.40 p. M, but he called me back to my phone when i was standing near by the bus-stand and talked rudely, "where are you.. Bus was waiting for 10 mins for you", and when i came back and saw the bus, they changed the bus itself also changed my seating arrangement (From front to back last seat). When i ask about that the bus coordinator not responding properly. He spoke very rudely.
I am very un-happy with the services, i suggest all of them to ignore these kind of worst service provider (Srs travels)