They gave total time of 30 days only for resubmitting all the documents. Really tight deadline.So after you visit the Passport Centre for your PCC appointment, the PCC document is delivered to your home address. You should get it within 30 days I believe. My AOR is also March 2021, but so far I have received only one ADR-for remedical. However, I have also booked appointment for PCC, as for sure they will be requesting that as well.
Based in Singapore, and have to apply through BLS singapore only.
The next appointment date available is 20 june, not sure if I will get it or not in time.