To the first point, again when I was in retail, this was exactly what credit card fraudsters did, park in the road outside wait for courier/ parcel force van to pull up call out to them is that for house number whatever, say they were just going out sign for it and off they went, on the 2 occasions this happened to me both people were caught and sent to prison for fraud.
on the second item, postal fraud is very serious, a local postie got sent down for a good time for not delivering mail. Admitting that you have this agreement is plain stupid on an open forum and as others have said, if you do get rights to use the classified section again I would be most dubious of dealing with you.