Ecom Express - Package not delivered

This is regarding the shipment with tracking id:
**********. Its been ** days, I haven’t received my parcel yet. From last * days it is showing ofd and nobody’s is even calling me and it is saying undelivered in the tracking link.
Then all of a sudden it’s showing ofd lock.
I tried reaching to your customer care, it is pathetic and not resolving my issue. I tried to contact the delivery manager, at first he wasn’t picking up the call. But after numerous calls he picked up and told me I will receive it today morning but still I haven’t received my parcel. I am contacting him today. Now he is not responding to my calls.
This is the number for delivery agent that i got from a text message from ecom.

Dear Customer, Your order with AwB ********** was undelivered . For further details, please contact Delivery Manager ********** or the shipper - Ecom Express.

Very pathetic service. You guys don’t care about the customers, not picking up their calls. Deliver my parcel asap!