Anyone one who has replaced TruGlo TFO sights under warranty, do you have an extension or alternate contact number for them? I'm stuck in a flippin loop with this company and can't speak with an actual human being! My front sight stopped glowing, pretty obvious that it's a problem with the Tritium vial. Should be a no-brainer of a warranty issue, if I could only talk to a damn live person! Thanx in advance.