This case involved the obligation for a bank to pay under an advance payment guarentee and bond for a prepayment made to a subcontractor where a contract was terminated. Key points included this was a pay when paid agreement and payments had not been made by the client. Levels of documentation which were needed were based on the specifics in the guarantee and bond contracts. Guarantees of this type were designed to provide for prompt payment any dispute around the original contract should be heard later.