My previous thread has been closed however as an update to this: Barclays Open Banking Multiple Accounts - #8 by Oliver_Palmer
UPDATE: Barclays have finally got back to me to let me know that the Open Banking is only for Personal Current Accounts at the moment as a sort of trial … and there is currently no time frame for when Business Accounts will be able to use Open Banking. So basically it’s not possible at the moment - not useful at all!