India Post — missing of registered parcel

Address:	Kolkata, West Bengal, 700001
Website:	REGISTERED AIR PARCEL

I had sent a registered parcel from calcutta-gpo-700001 on 31.03.2018 to floyd street, overland park, kansas city u. S. A and getting information the content not received by addressee.
Several letter of enquiry from 19.04.2018 to yogayog bhawan, web complain 0n 24.04.2018 and deptt. Of foreign post on 26.04.2018 already submitted. But no proper response received about the registered parcel. No one given actual fact of the articles, still it is untress.
Earlier to my ist web complain office of the foreign post assured me that the parcel despatch to chicago on 05.04.2018, due to this there is a delay in delivering the parcel.
Once again 2nd time i have made a web complain on 12.05.2018at about 9.25 am in the morning and got an information over telephone from rlo office that the registered is yet to despatch u. S. A and also inform they are trying to get proper information and let me at the earliest.