Natwest, Lloyds and other UK banking customers could be owed as much as thousands of pounds from their current or previous providers. According to Money Saving Expert (MSE), the refunds could be owed to some who pay, or who have paid, monthly bank account fees.

Packaged accounts, as they are known, usually have a monthly fee, and if used right they can actually save people money, for example on things like breakdown cover or travel insurance. But MSE says many of these accounts were…