Bumping this up as I think I have the same question as the OP:
I have EE with National through a status match (from Marriott Platinum/AC75K). My EE status is set to expire on Feb 29 2020. If I resubmit the National Status Match form now, I get an error saying "our records indicate you are already an Executive Elite member." Has anyone previously been able to obtain a second status match from National, after the first term expired? Or is the status match supposed to be a one time thing?