“……………the judge must have regard to the guidance given in Pereira and Estate Acquisition and the need, when applying rule 39.3(5)(b), to seek to give effect to the overriding objective of dealing with cases ‘justly’ and to comply witharticle 6 of the European Convention on Human Rights (‘the Convention’). This is particularly important where, as in the present case, the party has a reasonable prospect of success at the trial. In such a case, the court should usually not adopt a very rigorous approach to the question whether the litigant has shown a good reason for not attending.”