2013-4Q: Billing: Dedicated IBAN field
A dedicated IBAN field can be turned on under customer Bank Account Details page (Fig.1) for collection of the IBAN account number along with the currently used bank account number / sort code scheme. This additional field can be enabled under 'Customer Bank Account Details' section of 'Modify WISP' page (Fig. 2). There is an additional option (recommended) that will validate the IBAN put in and display an eror message might the IBAN not be correct.
Note that an correct IBAN number looks following:
More about IBAN can be found here:
Fig.1. Optional 'IBAN' field on customers' bank account details page
Fig.2 'Customer Bank Account Details' section of 'Modify WISP' page
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