" Register and fly - Register for $200 $500 $100 and then complete qualifying roundtrip travel on United or United Express You must register within 18 months of your mileage expiration date, and complete travel within 90 days of registration. The registration fee is non-refundable. "

Whats the definition of a "qualifying" RT flight on United or United Express? Is there a certain dollar amount?

For the other option, opening the United Mileage Credit Card through Chase, it says you must pay $100 first, BEFORE opening the CC. However, what if you get denied the CC, such as for being over the 5/24 rule? It says the $100 is Non-Refundable. Why should you have to pay a $100 non-refundable before opening the CC? Why not allow you to pay the $100 non-refundable fee AFTER opening the CC? Seems like they try to make it as difficult as possible.