“41. For the amendments to be allowed the Appellants need to show that they have a real as opposed to fanciful prospect of success which is one that is more than merely arguable and carries some degree of conviction: ED&F Man Liquid Products Ltd v Patel[2003] EWCA Civ 472 . A claim does not have such a prospect where (a) it is possible to say with confidence that the factual basis for the claim is fanciful because it is entirely without substance; (b) the claimant does not have material to support at least a prima facie case that the allegations are correct; and/or (c) the claim has pleaded insufficient facts in support of their case to entitle the Court to draw the necessary inferences: Three Rivers District Council v Bank of England (No3)[2003] 2 AC 1 . 42. The court is entitled to reject a version of the facts which is implausible, self-contradictory or not supported by the contemporaneous documents and it is appropriate for the court to consider whether the proposed pleading is coherent and contains the properly particularised elements of the cause of action relied upon...”