India Post — missing items

Address:

196-e, gali-2, Ramesh market, east of kailash,, New Delhi, Delhi, 110065

I have item booked my percale on 18/04/2019 15:20:25 from nehru place so to sultanpuri c block so (110086), with tracking number ed[protected]in. As per the tracking number item was between bag despatched to rohini sec-23 to bag despatched to sultanpuri b block s. O for almost 4 days.
In the percale there are 4 items but when my client went to post office then package is already opened and only one item was received to my client.
My desirable resolution of my complaint is refund the amount as per the bill attached.
My client phone number [protected]