Trackon Couriers — package not delivered but got message package is delivered

Address:	New Delhi, Delhi, 110072
Website:	www.trackoncouriers.com

My package no.[protected] which contains pan card was not delivered to me on till 24/01/19, 04:00 p. M
But i got the message it has been delivered a day before. When i contacted on [protected] but they also confirmed that it was delivered on 23/01/19. When i asked to whom it was delivered they said they will inform me with the challan copy. How can a package which has a pan card be delivered to some other place.

Secondly i got a message on 21/01/19 that my package is on its way to you from janakpuri and 3 days have passed i don't know when it will be delivered. I have also told my alternative contact number and complete address with landmark to the concerned person do that the delivery person not face any difficulty to reach out to me. But...???