USPS help needed

[jmiicustomz]

I was set to purchase a "homage" watch from a fellow in Canada. He builds them and regulates them using Asian movements and seems to do a pretty good job. I don't own a Panerai and am not sure I like the look but have several customers coming in telling me to give them a try. So I figured I would get an inexpensive but decent "homage" piece and see how it wore and decide from there. The wife is on me about spending money as she wants a new kitchen and bathrooms yesterday, so I sent him a money order so she couldn't track my spending. I had one of my employees run up to the post office and get a MO and send it priority (knowing that priority mail comes with tracking.) Well it doesn't come with tracking when shipped to Canada when no customs label is required. Now it has been three weeks and he still doesn't have it. USPS says they have no way to track it and that Canadian mail is just that slow. Is there anything I can do other than suck it up accept that I lost the money and move on? I thought there was a way they could do an inquiry into it but they say no to me on the phone.