Ignoring a Director Penalty Notice is a gamble you can't afford. The 21-day...

https://www.pfdbookmark.win/if-you-receive-a-director-penalty-notice-don-t-wait-the-21-day-clock-starts

Ignoring a Director Penalty Notice is a gamble you can't afford. The 21-day clock starts the moment the notice is issued, not when you open it