Ekart Logistics — Shoes ordered through Myntra are marked delivered without being actually delivered

I got a call first from ekart delivery guy asking for address and after I confirmed it I got a message saying my order is our for delivery.
Then after few hours i got another message saying delivery failed and same thing happened the next day.
I registered a complaint through Myntra(where I bought my product from) and after that I got another call from delivery guy reconfirming my address and he asked for my registered mobile number.
After I gave it, I got a message saying my order will be delivered on that day and soon after I got another message saying order is already delivered.
Now I can't call back the delivery guy because of the stupid number and code thing you have, the one I got through the message is not working.
I don't know how he was able to contact me and I can't call him back to check.
Now my paid order is God knows where.
Action needs to be taken on these delivery agents and I hope I get my order.