I am a MP member. If I book a UA flight through a 3rd party site (like Chase UR or travelocity), will I still be able to earn Award and PQM miles for the flight? Would I be able to purchase either an E+ seat or use miles to upgrade to 1st class? Also, I have the mileage plus explorer card. if I book through the 3rd party site and pay with that card, do I still get the card benefits (priority boarding, free checked bag)? Thanks for the help.