You have to dig a bit, and it's not really a solution, rather a breakdown of what's what, but there was some information there. Basically, a lot of post offices were closed down for a period (and some are still closed), though the Charlotte sorting office remained open...it was just that the route to Charlotte was severely compromised, so mail was slowed considerably. My payment posted on the 24th, finally, meaning it took about twice as long as normal (under normal circumstances it would have posted on the 17th or so.)
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