You need to enter the codes when, for example, registering for GST or completing an annual tax return. The Swift organization issues the Bank Identifier Numbers or BIC. The full name and address of the Beneficiary's Bank. The BIC is required to be included in all messages between the banks using the Swift network. BIC are the same thing and are interchangeable terms. EEA country has an associated BIC + IBAN, which is clearly identified and printed on all bank account statements issued after July 2003.

Country	City	Bank Name	Branch	SWIFT
United Kingdom	Buckhurst Hill	BYE C G	BYE C G	BYEBGB21XXX