Well il try to explain the best i can...my front bumper's midlle suports are broken,sorry if i canot be more clear

here's a foto to make it easier to understand...
As u can see the bumper is a bit down on the midle

how do i remove the bumper? and how can i fix the suports?do i have to replace them?
I know probably this happened to some of u so if u could help me i would be very gratefull
Thanks in advance
Jorge Calado