Ekart Logistics — Flipkart Order not delivered, says I am unreachable.

My smartwatch order from Flipkart with tracking Id FMPP[protected] is delayed by 3 days. The reason for unsuccessful delivery is that I wasn't reachable on my phone. Does it even matter because there can be many reason o[censored]nreachability. The delivery executive should visit my premises and ring the bell, and if then also I am not available then it's my fault.
And after this my product is not rescheduled for delivery. I am totally unsatisfied with your services.