I was scheduled to come in and run parcels. The supervisor texted me and told me I didn’t have to come in because they didn’t need any help. Not five minutes later he texts me back and says that they need help and I needed to be there in an hour. When I got there they put me on a route that I had never run before, and even worst the person that they had case everything before I got there didn’t even use any parcel markers or put the packages in order so I was put out there on a route I’ve never done with no idea what went where. Kept having to turn around and go back because I’d find something that went to a house I’d already been to