> - replace strings with enums where possible. E.g. "USD" should be from an enum Believe it or not, many bank use custom/non-standard currency code internally.

> - replace strings with enums where possible. E.g. "USD" should be from an enum Believe it or not, many bank use custom/non-standard currency code internally. I agree enum can be used for SWIFT, but it need to be string to be used internally in many bank.