In my experience Axiom will replace it. I had a dust cap that was loose on one of my M22s. I only noticed it on one series of notes on one song. When I contacted Axiom to ask if I should just glue it back down and they got back to me and said they would ship me a new driver. I still have the old one since technically it still works fine just w/o the dust cap which I finally pulled completely off.

3M80 2M22 6QS8 2M2 1EP500 Sony BDP-S590 Panny-7000 Onkyo-3007 Carada-134 Xbox Buttkicker AS-EQ1