Here's one for you, we've had a P.O. Box for over 30 years, last month rent was due, we made out a check, put it in the USPS payment envelope and hand delivered it to the post office. They lost the envelope/check, threatened to stop our service/close our P.O. Box. After nearly a month of checking with them in person once or twice a week, we decided to pay it again with a credit card. Next week they cashed the check.....Unbelievable.......