Instead of simply informing the recipient that they agreed to negotiate the loan, the CBA entered into an agreement called “silent confirmation.” The main terms of the agreement were as follows: a silent confirmation letter resembles formal accreditation. It also has the protection of a foreign bank that supports a national bank, but the national bank has the opportunity to negotiate terms and prices with the seller. A credit issued by a bank and obtained by a buyer stipulates that the bank will ensure payment if the buyer does not do so. Formal and silent confirmation letters are types of letter of accrediting. A formal confirmation letter is the same as a confirmed accreditation. The seller has a very low risk when selling to a customer who has received a formal confirmation letter. It is important that this obligation of BOI is independent of BOI`s commitment to the beneficiary19 One of the preconditions for seeking an implied duration and, in many respects, the most difficult is that “it must be necessary to confer commercial efficiency on the contract”. Costello J did so in the event that the plaintiff had lost all rights against BOI as a result of the assignment, while the defendant had a remedy without the implied provision, without seeking the plaintiff. Olex Focas Pty Ltd v Skodaexport Co Ltd  3 VR 380. Weaver et al, The law relating to banker and customer in Australia, (Third ed, Thomson Lawbook Co 2003) for a debate on the principle of autonomy and its exceptions. . An issuing bank may be reluctant to authorize a bank or apply to become a confirmation bank. The issuing bank may be subject to local rules that restrict its relationship with foreign banks or may be subject to exchange controls that prohibit or sanction the use of a foreign bank as a confirmation bank.
In some cases, due to the reputation of the foreign bank, he may be hesitant to form a relationship. Costello J concluded that the defendant was far from taking all reasonable steps to require BOI to be released, but that it had in fact taken no action.15 Art 1 UCP 600; the principle of autonomy was well established before the PMU; See z.B. Urquhart Lindsay & Co Ltd v Eastern Bank Ltd  1 KB 318. The principle also applies to performance bonds and standby letter-seeders: cf. Edward Owen Engineering Ltd gegen Barclays Bank International Ltd und Umma Bank  QB 159; Wood Hall Ltd gegen The Pipeline Authority (1979) 141 CLR 443. . . .