District Court Rules 2014, rule 8.4
Along with their statement of claim, the lender must include a list of:
all the documents they’ve referred to in the statement of claim, and
any other documents they’ve used when preparing their statement of claim and that they intend to rely on at the court trial.
You can then ask the lender for copies of any of the documents in the list, and the lender has to give you them within five working days.
The same rules apply to you when you file your statement of defence. You must provide the lender with a list of relevant documents, and the lender can require you to provide copies of the documents within five working days.