Delhivery — I have lost my baggage during courier

I have lost my baggage during transit of courier. There is no proper support given for tracking it being such a reputed courier service. I have some very important documents in it. There is no customer support contact number. Only limited number of mails can be sent. I am highly disappointed and don't know how to track it back so that it can be sent to the origin address. I need my baggage back on an urgent basis. I was following up everyday but no reply was given.I am attaching consignment number AWB[protected].It was a blue colour air bag