Jet Airways — platinum, member yet delayed baggage!

I am a platinum member and yet my bag was left behind in delhi. Firstly, i was not informed before take off that my bag was not in the flight. Secondly, after landing, i waited for my bag for good half n hour, only to realize my bag was missing. I was informed about my bag being left behind in delhi, only after i proceeded to the missing baggage counter and upon inquiring with the jet airways staff. Somehow, no one had the basic courtesy to inform me of this random decision by the airlines, either before take off or after landing! The staff in bangalore were not of any help either. His response - "this was airlines' decision and it happens and we will have to deal with it". First - he responds that my bag was left behind as i was late; when i said "no i was not late", he continued to ask if i had any power bank! Clearly, he was not even aware of bags being held up - which is quite scary! Not only was he unaware of the situation, but was also unable to answer with clarity. On a personal note - i had some extremely important document in my bag and confidential data, including my laptop charger which i require for my important meeting at 9 am the following day. Now, i am having to cut a sorry figure in my company due to the airlines' random decision that "my bag was not so important". My job is at jeaopardy - thanks to jet airways! Apparently my bag is going to arrive only at 9:30 am in bangalore, which means i am definitely missing out on my meeting! Is this how a platinum member treated?? Most importantly, is this the courtesy extended to a solo woman traveler at 00:00 hrs??
To give a quick reference for customer service: i faced a similar situation nearly 8 months ago with vistara - but the staff were extremely courteous in letting me know of the status of my baggage before take off and helping me take out the items i needed immediately. Please note : i was not even a part of their loyalty membership program!!