Green Line Travels — Cheating customers not responding irrelevant in the website

Address:	Bangalore, Karnataka, 560029
Website:	greenlinetravels

Hi this is Praveen i have booked tickets for 6 peoples for Mysore sightseeing on 18th December 2016 on Sunday.
It shows that the bus would come to pick up at 6:00 am but the bus haven't come at that time later i have received call from the driver at 7:10 am,
We waited a long and as the contact number they have provided is not responding we have to just come back to home.
So we were really frustrated with this as the contact number is not responding or not reachable in the morning, we decided to postpone it as there is an
option available in the website but we were shock that it's not accepting the postponement of the tickets and throwing the message as: We are unable to process the request.
This is really shocking if this is not working then what is the point in placing this in the website ?
Finally just because of their neglegence and not responding we had to loose Rs: 2460 and that's Rs: 410 per person.
I have no words for them they are really cheating the customers with the irrelevant way.
I am really sorry to say please do not book through this travels as they never respond. Finally i would like some higher authority to take an action.
And do inform me, my contact number.
Find below PNR, Date of Journey:

PNR: 517866
18th December 2016.
Contact Number: [protected]