Parcel Misplaced

Tracking Number: LE7524679296

Parcel is booked from Sama Plaza, Blue Area Islamabad Branch. Mistakenly Shipper wrote the wrong origin: Lahore. Which should be Islamabad, but that's okay if he write it wrong, then the Franchise staff should have to notice it and should have tell the shipper or sender to change it but the didn't. They Booked and according to them they sent it to head office which is at IJP road, Rawalpindi. It's been 20 Days no parcel delivered, We complaint so many times they didn't bother to solve, They are just saying that We didn't receive the parcel, go to franchise and ask. Franchise staff said we sent to head office go ask there. What should we do now? Carry Gun and go ask both of em?