The Plaintiff is claiming against the second and third defendants for the Outstanding Sums under a Letter of Guarantee dated 24 July 2013 (“the July Guarantee”). The second and third defendants alleged that the Letter of Guarantee is invalid because they were unduly pressured into signing it or that there were false representations made to them. I do not find it necessary to consider these allegations. Contrary to the submissions by counsel for the Plaintiff, I find that the July Guarantee had been superseded by the later guarantee dated 24 September 2013 (“the September Guarantee”). Under cross-examination, the senior manager of the Plaintiff disagreed that the September Guarantee supersedes the July guarantee and went on to explain that the September Guarantee was “drafted specifically such that it would cover old and new debts”. She then stated that the July Guarantee was also meant to “[cover] old and new debts”. This led the lawyer to question the distinction between the two guarantees, to which she answered “[t]he [September Guarantee] is worded more professionally. It was drafted by a lawyer….I do not know who drafted the [July Guarantee]”. Indeed, both the July and September Guarantees covered all sums payable by the first defendant for orders made from the Plaintiff. But the difference highlighted by the senior manager was not the only difference between the two guarantees. Significantly, the July Guarantee imposes a compound interest of 2% per month for late payment but the September Guarantee does not. The September Guarantee also contains an arbitration agreement. There cannot be two sets of rules applying to the liabilities of the second and third defendants in relation to the same debt. The Plaintiff clearly intended the September Guarantee to supersede the July Guarantee and the second and third defendants understood it as such. The second and third defendants tried to rely on the arbitration agreement in the September Guarantee. But their objection to the matter being litigated was not pleaded and no application for a stay of proceedings in favour of arbitration was taken out. In fact, the second and third defendants submitted to the jurisdiction of this court and participated in the trial.