Lost parcel/bad service

Sent a parcel through PEP and PAXI till today parcel has not arrived to its destination cashier who was helping me made a mistake and sent to wrong address as sms I received showed wrong address told her then she said she fixed it clearly not as I have been calling PAXI and Pep no one seems to know how to fix this issue as they say it's been short received don't know what that means parcel was sent on the 26 of August at Pepe Westgate Mall by the cashier named Cancy I'm not impressed by this service as I feel undermined by both companies and my parcel is floating somewhere need a resolution.