Just had a very intriguing phone call from the head guy at the problematic post office. He's been personally investigating my two lost packages and he tells me that he's found out something that I will find very interesting - but he wants to talk to the owner of my mail place before he tells me. So, I'll hear from him tomorrow after that conversation takes place.
From the tone, I'd guess that he may have found out something that is damning not to the post office but to the mail place. Just a guess and I, of course, am quite anxious to hear the tale.