Mate of mine had a medical problem that necessitated a 12 month grounding.
After his renewal, they said it would be 4 months before they got to his application.
When they got to his application after 4 months, they rejected it because all his specialist reports were over 3 months old
Rang CASA today, 14th March, and their voicemail message proudly stated that they are currently processing medical certificate applications from 07 January.