Gujarat Travels — bus delayed keeping passengers uninformed

I booked bus from gurgaon to jaipur. But departure time from iffco chowk, gurgaon was 6.00 pm but it has not come and on calling customer service they told it's late by 30 minutes.. Ticket tp3p30871401.
The bus agency is gujrat travels, this must be a smaller company but if this is the case redbus must not allow it.
I hope this needs to be checked, if we cant cancel ticket, they must not delay bus.