They said: “In arguing his case, the Duke of Sussex had alleged a “secret agreement” existed between him/Buckingham Palace and NGN which stopped NGN from asserting that the Duke’s claim had been brought too late.”The judge, Mr Justice Fancourt, found his claims in relation to the alleged ‘secret agreement’ were not plausible or credible.”It is quite clear there was never any such agreement and it is only the Duke who has ever asserted there was.”