Postal Locations

Mail 3 large Manila envelopes from the Turnersville NJ. I have the receipt showing that 2 were mailed to Riverton NJ branch and 1 to Washington DC. The mail was never delivered and when I call and spoke with a mail clerk today was told it’s a lost and will never be located. That is terrible and should have some way of locating my mail. There were checks in the envelope and I consider it theft!!! US Post office is responsible for this lost and should be account for. I mailed them from the desk and it’s wasn’t dropped into a mail box. Was the mail just thrown away and not sent to the next stop. I should have gotten an answer and not told it’s your lost. It wasn’t free to mail the letters either.