The Big Four were ordered to pay interest or provide money-free transmission services as a structural remedy, and today's rule change is the Commission's behavioural remedy. The eight banks - Barclays, Bank of Ireland, Bank of Scotland, AIB Group (trading in Northern Ireland as First Trust), HSBC, Lloyds TSB, National Australia Bank (through its subsidiaries Clydesdale Bank and Northern Bank) and the Royal Bank of Scotland Group - must provide details of a customer's regular payment instructions within three days of a request to switch, and transfer an SME balance within four.