Madhur Courier — Non delivery of the parcel containing my mother's daily medicine.

I had sent my mother's medicine via madhur courier on 2 Nov 2021 having receipt no. [protected] from Balaghat (M.P.) to Bhopal (M.P.). I was given assurance from their side that even with considerable delay she will get them in max 4 days. It has been nearly a week and there is no record of the whereabouts of the parcel. The online tracking window provided by them has one frozen response that the parcel is on the way for days. Please help in resolving the issue at the earliest so that my mother can get her daily required medicines without any further delay.