Yes you are not the 1st person I'm seeing having to prove that you paid priority, which is awful. I wrote mine all over the package that I sent.
Haha, yeah, the thing is I wrote it all over mine in big, sharpie letters as well! That's how I know it must have not got scanned. Oh, well, it only makes me wish we had contacted our MP sooner. Hopefully still a decision with enough time to make it for Christmas.
I cannot stress enough that anyone who purchased priority and sent docs to NYC should double check if they are past the 30WD mark.