I have no idea. I am looking at a receipt from Scenario B from May 9th. The Tracking number is near the top, after the price for the individual item and it is 22 characters long, arranged in groups of 4 until the final 2. The Bill # is near the bottom, above the survey request and it is 13 digits without any spaces. Every receipt I have ever gotten from a USPS location has exactly the same receipt format. If you went to a contract location, or were performing one of the HazMat shops at Staples, Office Depot, AIM, or somewhere else, all bets are off.
Shopping South Jersey, Southeast Pennsylvania, and Delaware above the canal since 2008