Trackon Couriers — Parcel not delivered, no update on website from March

I have shipped multiple parcels from Surat, Gujrat to Imphal on 11/03/2020, 12/03/2020, 20/03/2020, and 16/06/2020. No update on their website after Kolkata/Guwahati centers. No number provided on their website is working, every number is switched off. No response to the complaints placed on their website. I have tried calling all Trackon centers, every number is switched off and the Delhi number they won`t answer. The receiving party is getting Impatient as they are waiting for 4 months. Even though we have this lockdown situation, every other courier resumed their services slowly and parcels are moving only this trackon courier service is still stuck with no proper update or with no one to answer creating trouble. please sort this asap.