So, been two weeks since I sent the sample and the tracking shows it did a local tour (regional processing center and back) than came back to our hometown and hasn't moved since last Friday. So I went to the Post Office and was told that they cannot see anything more than I can, the label "may have fallen off" and that 10 days is not atypical for "3-5 day" ground service....
Why again I won’t EVER trust POST OFFICE!

I requested more kits from Blackstone and will try again via UPS.