Are you refereeing to the ([HASHTAG]#000473[/HASHTAG]) listed on your invoice? And if so, how do you know that it is supposed to be the serial number? I can see why one would think it is but has it been confirmed that the number is supposed to be the serial number?
Well, the way the invoice is presented would seem to indicate that it is in fact the serial number of the device, but after all this I'm having to realize the number might in fact be meaningless. It's not anywhere on the device itself, and so I think I have a question for MMV. My other two Poldiacs do have serial numbers on the bottom caps, but those might mean nothing as well. At this point I'm far from certain.