Kolkata Foreign Lcao — delay in transferring shipments

My registered shipment rr[protected]bd was sent from bangladesh on 13th february and is to be delivered at an address in mumbai but it has been held in kolkata foreign lcao since 20th february 2020.

I have been trying to reach kolkata foreign post office through numbers given on india post website but no one picks up the phone!! Even the india post customer services phone number at mumbai is never attended to! They also give excuses that they can't reach kolkata post office!

I don't understand why is kolkata foreign lcao is not transferring the shipment to mumbai!! When will they understand the seriousness of transferring shipments on time?