HA! Sharpsrifle,you don't have much experience with the competition, obviously. Use Registered Mail, insure it, and you shouldn't have any problems. Mailing your monthly bills with an unreliable service could cost you as much as a lost gun. The last time I was late on my Visa bill, it cost me hours of time sorting it out.
X2 Never a problem with registered,every person who touchs the package has to sign for it,slow but its gets there intact.
I,also, now pay my bills online,much easier and never a problem with late (I swear they through 2 or 3 bags of maile on the side and let them sit just to run up the fees)