DTDC — im complaining about my missing things.

Address:

West Tambaram Chennai, 600049

I sent my courier from delhi to chennai west tambaram after one week receiving the courier i found my bag is missing in the box 📦 and i tried to inform this by contacting them but they did not respond it well.
Please help me by finding my bag and return it to me. I placed my charger, belt buckle and other stuffs in that bag.
I need my bag, my bag colou is black in colour and somnath will be written in the top of it.