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Digit format unclear
The format of the numbers is not completely clear. Eg the final section on Check Digit does not indicate whether this is the check digit of the Issuing Number, or of the Account number, or whether is is one of the account number's up to 12 digits, or an additional (possibly 13th digit). Including a table with digit place in the left column, and meaning in the right column would make the format clear. FreeFlow99 (talk) 11:54, 12 May 2015 (UTC)