Overnite Express — delivery issues for consignment note no - [protected]

Website:

overnitenet.com

I had a very important bank papers traveling from guwahati to delhi (In gk-2) sent on 6th sep 2017. As per overnight express website the documents have already been delivered to me. Whereas i have not yet received the documents. I have registered a complaint through overnight express customer care - i was informed that with in 24 hours a copy of receiving signature would be shared with me and the delivery was made to wrong address by mistake then overnight will take a step towards going and fetching the package from wrongly delivered address and deliver it to the correct address. Unfortunately even after 48 hours no action has been taken.
Consignment note no - [protected]