Ecom Express — Fake Delivery Attempts

My package was supposed to be delivered on 20th dec but it is still undelivered. A Fake attempt was made on 22nd dec but the customer received no call from the delivery partner . But the package is was undelivered saying the customer refused delivery. As of 23rd i have raised several complaints but no action has been taken yet. Ofd Lock has been applied this morning I don’t even know what does it mean. I just want my package to be delivered asap. This is by far the worst logistics experience i have ever had.
AWB no.[protected]