Binding Post Loose tweeter connection.

I have a pair of Paradigm Studio 10 V5's and one of them may have been damaged from shipping. When I play them, the tweeter on one of the speakers will stop working. When I put a tight rubber band around both speaker connections on the back, the problem goes away and the tweeter works. Any suggestions on how to fix this? It is the left connection and it appears bent. Thoughts?