Someone in the November 2019 group got a gu but no ppr. His gcms notes came yesterday and he found out the gu was for his file being assigned to an officer for final review and due date to be 18th of March. So your gu could be it as wellNo idea
I have not ordered GCMS notes. Just sent webforms whenever I had to inform of any change in address or passport update and recently for remeds in Jan 2022.