....hold onto a parcel for a week when it was obviously delivered there by mistake?

It is correctly addressed with my town and postcode, but they still scanned it in at the wrong post office, wrong town, wrong postcode and then hung onto it for a week before deciding to put it back into the post so it could continue its, rather long, journey to me.

I wish the sender had let me know it had tracking, I could have gone and picked it up last week.