If POPLA allow up to 33 days from the date of the operator's letter then this is Sat. 13th. (letter dated 11 Dec.)
If not, then you're likely to be too late.
Get what you've got submitted ASP.
But POPLA isn't a judicial proceeding, the only one which counts is civil court.
Not only are you not required to name the driver, you're under no legal duty to respond to their drivel. Just because they initiate correspondence doesn't mean it has any legal significance, and theirs doesn't because the only relevant statute, Sch. 4 Protection of Freedoms Act 2012, specifically excludes such a claim from its scope!
As others know, I don't agree with the template because implicitly it subscribes to a legally false premise e.g. of course their notice doesn't comply with PoFA, it never sought to; and it makes no demands on the keeper etc.
But we don't have time to debate this - go with what you've got and hope you're not too late.