lower plastic panel on door

My SO, aka "the destroyer of Benzes" (wrecked my last 500SEL), has managed to rip out the plastic panel on the passenger side door by catching it on a high curb and pulling on the door. The panel is still held to the door from the upper attachments but is flapping like a doggie-door because nothing holds onto it at the bottom. What parts do I need to repair this? It seems like plastic holding pins were broken in the process...