Goodluck Courier — misplaced my courier

Address:	Kolkata, West Bengal
Website:	Good luck Courier KOlkata, Bangalore

My sister in law sent a parcel from good luck courier company kolkata to erode, which was about to come via bangalore and the bangalore good luck office has misplaced my parcel which was to be recieved by 18 september and now when i call them to ask about the status they say me that forget about your parcel, you will not receive it.. Is this the responsibility they take towards their customers.