IPhone
Not Received Item even after 24 days

Hii my friend had sent me an used iphone from US on 19th March by USPS priority mail international

with customs form number

LC136498130US

here are the tracking details

Your Label Number

Service

Status of Your Item

Date & Time

Location

Features

LC136498130US

Priority Mail International Parcels

Processed through USPS Sort Facility

March 21, 6:30 pm

MIAMI, FL 33112

International Letter

Processed at USPS Origin Sort Facility

March 19, 10:26 pm

JACKSONVILLE, FL 32099

Dispatched to Sort Facility

March 19, 4:39 pm

TALLAHASSEE, FL 32301

Acceptance

March 19, 11:02 am

TALLAHASSEE, FL 32301

it left USA on 21st March, its been 24 days and still the item is not received by me, can anyone please guide me where to contact? as when i lodged a complaint on the india govt post they said that its not trackable in india and closed the complaint

I am from gujarat

please help me

thanks a lot