"Together with service of his/her claim form each claimant shall, save in the early disclosure cases where such information has already been provided, serve a letter 'early disclosure letter' upon the defendant, such letter to be copied to the lead solicitor setting out the following information ... B, the mobile telephone numbers of the claimant during the period from 1998 to 2010 inclusive 'the relevant period'; C, an outline of the nature of the remedies he/she seeks; and D, the mobile telephone numbers of not more than four persons associated with the claimant during the relevant period 'associates'. 31: "
"The claimant shall by the deadline for service of any reply provide the defendant with the mobile telephone numbers of any additional associates named in the particulars of claim for which call data disclosure is required."
"The current and future claimants have permission to rely upon the particulars of common facts and issues and must plead their claims by reference to the same. Claimants shall not be allowed to plead any additional or alternative material going to matters in the particulars of common facts and issues without the consent of the defendant or an order of the court."