What are the UK rules on access to banking and how are disputes settled?

A cash withdrawal from an ATM. Everyone in the UK has a right to hold a basic bank account. Photograph: Aaron Chown/PA

As the storm over the closure of Nigel Farage’s bank accounts at the private lender Coutts grows, here we look at the UK rules on the right to be banked and how account holders can complain if they feel they have been treated unfairly.

What rights do I have to a UK bank account?