We have a five year warranty on all of our binding products, so as long as its within warranty, we will cover you.
Because of how the fks/look binding is assembled, we can not offer the purchase of just brakes, it is not simple to remove/replace these brakes like others on the market. Trust me, I wish we could, but there are liability issues with doing so.
Best bet is to visit a look/rossignol dealer, and see if they can help you out, or to send your complete bindings back.
Send me an email, I will also see if I can help out.
Matt Rihm, Team Manager.
Rihm@rossignol.com