UPS Store Fleming Island Retail Store Destroyed US Mail that arrived for my organization without contacting me or returning it to sender. Orange Park Florida

My organization, The National Fellowship Churches of God, Inc. (NFCOG) maintained a UPS box (at 5000 US Highway 17, Suite #116) for a ten (10) year period.  We terminated the box more than 8 months ago and paid the the required fee for pick-up mail that had arrived post-termination approx. 30 days after closing.  Since, that time we have not been contacted to advised us if any mail was received.  We have just learned that several of our church conference delegates sent checks and money orders to us in the recent weeks.  When we contacted the UPS Store (904-264-8944) to arrange pick-up we were informed that all mail coming for us has been destroyed rather than even returned to sender.  Whereas, it is a federal crime to destroy someone's mail, we would like to register a report.