As noted in this other thread:
… the Lords Select Committee released a report relevant to this topic on 25th March 2017.
The Select Committee on Financial Exclusion calls on the Financial Conduct Authority and Banks to give greater priority to tackling financial exclusion in the UK. With more than 1.7 million people in the UK without a bank account and 40% of the working age population with less than £100 in savings, the Committee asks them to end the scandal of the poorest being excluded from even the most basic financial services.
The report can be downloaded from this page: