How can I help with this please?
I'm not sure there is any point in doing that. All you will do is give them an opportunity to put it right.
However, if you are intent you can write to CPS asking for the statement and making clear you will have it listed for non disclosure if they do not.
They probably will not. They are in meltdown. If they didn't waste all their resources on false allegations of sexual abuse they might have time for proper crime.
If they do not, then just get the court to list it for non disclosure.
If I were running this case though I would just let them fail to comply with their obligations as tactically that is much better.
Can i clarify anything for you?
Because you are asking them to disclose.
Therefore there is a risk they will.
Therefore advantage is lost.
You will lose on the point that you do not have adequate time to prepare. If they serve this statement even a few days before the court will say you have long enough.
There is no chance of it being quashed on that basis.
Even if they served on the morning of court you do have time to prepare. You could ask for an adjournment if there is other evidence to secure.
All the best.