PRTC — early departure time

Website: Pondicherry road transport corporation

I booked my ticket from puducherry to chennai using busindia.com. My bus departure time is 7.30am and i came to the boarding point at 7.28 but there is no bus. So i went to the help desk but there too i dont find anyone. And later happens to knew that the bus left at 7.25 leaving my collegue and me.

I felt these things to be inappropriate
- the bus left before the departure time.
- no person in the help desk
-while booking i provided all my contact information but they didnt leave any msg or cal about my absence.
- not following the exact departure time (Mostly used to leave 15 mins after the departure time)

People pay for their tickets, so we are happened to expect the appropriate service. Please kindly see to this problem and value their money and time.