The short version, for anyone who has not been following closely.
It is the sort of thing that seems settled until you look at the detail.
What it costs
Nobody is required to explain this to you, which is half the problem. The figures move about, but the direction has been the same for three years.
Where to go from here
The practical effect is easier to see in a single example than in a summary. There is a deadline involved, and missing it costs more than the difference.
The short answer: check the date, then check the figure, then decide.
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