India Post — I m complaining about loss of my parcel

Address: New Delhi, Delhi, 110025

Website: www.indianpost.gov.in

I ordered shoes from alixpress china indian post office new friends colony responsible person chandra bhaan [protected]
Tracking id is rf[protected]cn
In tracking its shown delivered but they don't delivered yet even didn't call once
Later i contacted in post office then now they are saying that your parcel is lost.
Please do the needful.

With regards
Rahil ahmed