The restriction kicks in now for a reason. So that you address it immediately.
A letter does not make you address it immediately. There are people in this world that say "what?!?! What do you mean my licence is suspended?!?! Yea, I got a registered letter, but I didn't go to the post office"
I'm all for forcing people to address having a measly 20 players at each level except rookie at the time that they do.