I just fixed mine,the hassle of sending them is just not worth it.even if you get a new one i think the rivet that they use will still come of.i think they use a cheap and thin rivet.i bought 5/32 rivet and it fits very well.
Same here, somewhere along the way from the factory to my car, a few of the rivets came off.
Initial P.O.'d feelings have given way to "meh" feelings. REALLY wish I had thrown some N-Fabs on