Hi katsooba,
Any ideas on how it might have happened?
A few folks (not many) have reported this after hitting potholes:
http://www.1addicts.com/forums/showthread.php?t=836231
It seems repairing this is not too hard. The top of the strut can be beaten back into place using a wooden block & hammer technique. Just try to find a place that's done this before...
Karl.