“33. Similarly, I do not accept the respondents’ argument that the application to amend should be refused because, without knowing the identity of all of the claimant’s comparators, they have been denied the opportunity to resolve the claim outwith the Tribunal proceedings. It is not in dispute that the respondents have known from the outset of the proceedings that the claimants’ grievance is about equal pay. It is not suggested by the respondents that had they known about the additional comparators that the claimants’ Grievance would have been resolved and the claim avoided. Failure on the part of a claimant to refer to particular comparator in her Grievance, resulting in the respondents being prevented from understanding or resolving her complaint in advance of Tribunal proceedings can be the subject of a reduction in any compensatory award that might be made to the claimant.”