12 Subject to some other matters which I mention in a moment, the 17 claims for variations submitted in the plaintiff's amended schedule are claims due to be paid to the sub-contractor and they arise out of the contract and should be paid. It was not primarily the plaintiff's fault that no representative was appointed. In all cases the 35 day period elapsed without any payment being made. The last claim No 25 was submitted on 2 February 1999 and the 35 days elapsed on 9 March 1999. The defendant appointed Mr S Naulls as main contractor's representative on 23 April 1999. On 7 May 1999 he issued a contract variation advice for invoices 751, 940, 758, 929, 930, 931, 948, 949, 759, 932 and 933 - (which are 11 of the claims listed in the plaintiff's amended schedule). This assessed the value of the variations at $168,480. It made three deductions from that sum: $25,186 for variations already paid; $53,908.18 for bank charges notified to the plaintiff; and $20,000 being an estimate of bank charges due for faulty work, leaving a total of $69,385.82. He then issued a progress payment certificate for that balance on the same date and that sum was paid on 7 May 1999. His appointment and his payment certificate were too late to be effective legally in relation to the claims the subject of this action.