If a problem has occurred and you are sending
paperwork and the carbon copies off to the
responsible party, make sure to make a copy
of all the paperwork and the forms before
you send it off. Any time an original receipts
leave your hands, you should have a copy as
proof in case they are lost. Bureaucracies lose
paperwork all the time and will not claim
responsibility for the loss unless you have 
copies to back up your claim.

My 2 cents,
Marcus