16 members of the Oregon National Guard have been denied bonus payments when they enlisted. Chelsa Wells is one of the victims.   She enlisted in 2007. She was promised a $20,000 bonus and was paid half then and the other half was to come three years later. When she tried to collect last December, she ran into problems: “They gave me the first $10,000, no problem. And then when I go to get the second $10,000, whoa .. this is not right, you shouldn't have gotten it.” U.S. Congressman Greg Walden of Oregon is trying to apply pressure to make sure National Guard members like wells, who were promised these bonuses, get them.