DHL Express India — Inordinate delay in delivery DHL Shipment Notification [protected]

Please note that above parcel reached Delhi, India on 11.05.2021 from Turkey and we kept on getting notifications daily. In reply to the notification we requested through email on 14.05.2021 that in case the address of delivery being an office is closed due to lock down, the parcel may be delivered to home address mentioned in our mail No action taken.
The parcel contained bill of lading of an import consignment without which the import consignment will not be released and will start attracting heavy penalties.
We and our agent Hellmann tried to contact DHL for the help, not exactly knowing whom to contact. we and our shipper in Turkey confirmed DHL of alternate home address, the procedure took 3 days.
Inspite of all running around and emails, the delivery man reached our office address today the 27th of May, 2021 at about 8AM. On our request it was delivered to us at home.
Dhl must have collected my mobile number from shipper why I was not contacted? Why no response to our mail of 14th May? Why the company is so casual in lockdown situation? Why the alternate/changed address not given to delivery person.
This was a totally unprofessional and casual approach of DHL embarrassing us.