Blue Dart Express — about delivering my paytm order

I ordered type c otg and cable on paytm. Delivers through blue dart courier service and expected delivery was 27 nov 2018. I paid total cost when purchased but they didn't delivered my order but they send me invoice that shows item was delivered. Then i e-mail complaint to blue dart, they didn't reply. So i ask help for paytm but it didn't work. My paytm order no [protected] and blue dart awb [protected].
I think blue dart courier boy take my order for himself. So please help me