In due course you will get details of the allocation to your local court, please post here when you do, but it will contain deadlines of when the claimant has to pay the court fee and when Witness Statements have to be filed with the court. If the former is earlier than the latter, make a note in your diary and contact the court the next day to see if the fee has been paid or not.
What were their answers to the questions I advised your to ask in reply #11?