Sent package to wrong region nw i must trace it

I asked a friend to courier very IMPORTANT DOCUMENTS tht u required urgently for travelling abroad via counter-to-counter(overnight) service, i went to collect on the expected date n was told they were delayed and i should check the next day, as instructed i went to check and was told my parcel was still to arrive ( 4 workings days late), today 7days later, am told my parcel was sent to the wrong place and now i've been given Personal contacts to trace the parcels myself which i feel is really unprofessional as i will be engaging with the person on a personal level now.This has been really inconvinient as my trip has been forced to be postponesd twice now due to this matter.i've tried calling the customer service but i've been put on hold for a very long time each time i call.PLEASE HELP,