Kaveri Travels — rude talk over phone

I have booked my travel ticket from chennai to vizag on 24.08.17 for 2460/-. It is the double charge as compared to usual charges. I was stucked in traffic and requested them to wait for 10minutes. But they just said sorry and disconnected the call. I have again contacted but the way they spoke to the travellers is just ridiculous. Pl take action on such staff and if repeats it damages the reputation. Any how i'm not going to prefer this kaveri travels again and don't want to recommend as well.

Below are my ticket details.
Redbus mticket

Route: chennai to visakhapatnam
Ticket no: tk9m57779874
Pnr: kaveri4165028-kvsp-1
Travels: kaveri travels
Departure: 05:00 pm aug 24, 2017
Seat numbers: r18
Original fare: rs.2464