I had sent a parcel with couple of gifts costing about 100$ for my son's birthday from US (Fisrt Class Mail) Customs Form# - LC172425020US, only 50% of the items have been received.

Sender's Address; Venkata V Vadarevu, 3100 Woodbridge Dr SE, Apt 103, Kentwood, MI, USA - 49512
Receiver's Address: Shri VR Sharma, Plot No. 208, Arya Nagar, Durg, Chattisgrah State - 491001.

May I know how can I retrieve these items or claim damages or who would be able to resolve this.