Spice Jet Airlines — baggage

Address:

Bangalore, Karnataka, 560085

The airline forgot to put the baggage and left it in bangalore, my parents when they landed in Patna were left without medication, clothes and had limited cash, due to negligence by the airline. My parents have suffered innumerable hardships during their religious tour due to the airlines incompetence.how can you forget the baggage?, which has been checked in as per your procedures