Jet Airways — unprofessional ground handling staff

I missed my flight on 12th may 02.05 am from mumbai to colombo by 2 minutes, despite mine& collegues constant appeals the boarding staff did not listen to us nor did thet book us on alternate flights. Firstly the pa system at mumbai airport is not clear and the boardinf staff did not di anything to help us, only offloaded us & we had to get everything else done. We incurred inr 40k loss & tremendous mental grief as my waiting son at home was hugely upset, what was most upsetting was the extremely callous& unprofessional attitude of the two staff at the boarding counter on the jet airways flight to colombo on 12th may morning.
Appreciate your swift action & response