The 21-day clock on a Director Penalty Notice starts on the issue date, not...
https://meet-wiki.win/index.php/How_do_I_work_out_if_the_company_lodged_BAS,_IAS,_and_SGC_on_time%3F
The 21-day clock on a Director Penalty Notice starts on the issue date, not upon receipt. You must distinguish between lockdown and non-lockdown status to properly shield your client from personal liability