I was hired in Nov 2016 as seasonal for cover driving and preload. Went to driver school etc... the center I was first hired was full so I was ask to drive 30 miles one way to another center. The HR person said that with the driving distance my pay would be a flat rate of 18.75 a hour VS the normal 11.00 for preload but I would make that no matter if I drove or preloaded. So started on the preload through Christmas and never received the 18.75 I since then have been brought back to a permanent position closer to home. Still have not been compensated for the 4 week that I was cut 8.00 dollars a hour on those checks and have not had a lot of luck dealing with HR.. Who can i contact to get a issue like this resolved?