The Professional Couriers — Product not delivered to me but professional courier is telling delivered

Address:

Subramnyampura , Bangalore

Consignment Number: CCU[protected]

Hi,
Professional courier has an irritating process and I am getting harashed by calling them to resolve my issue. One of my product has not delivered to me and they are telling it is delivered to me. Whenever I enquired they are telling they have handed over to apartment security without my knowledge. Security person is telling he has not received any courier . When I talked to professional courier they are telling check your CC camera . Our CC camera is not working . From there onwards Professional courier we are calling everyday and they are telling same story it is delivered to security and we cant do anything. This is a harashment, why didnot they call me before delivering, why didnot they collect OTP of receipt. On what basis they they are confirming that product is delivered. Simply they cannt say delivered. I have a product of 3000/- rupees in the courier and they should pay the amount if they are unable to deliver.