Mi App Store — product not delivered

I ordered a mobile handset from mi store on 10th december 2019. Till today the product has not been delivered. I did call regarding my order to customer care several complaints. My product tracking id is: [[protected]]. My order with ecom express hyderabad telangana doesn’t attempt for delivery even a single time nor even they call. False updates are updated by them, on their website tracking like "customer not not available or undelivered". Kindly arrange to deliver my product.