Nationwide in Newport

Customers using Nationwide may not be able to make any cash withdrawals, use Internet banking or send payments as it upgrades its system.

The company – which has millions of users across the UK and thousands on the Isle of Wight – said the upgrade will happen from midnight tonight (Saturday) until 8am tomorrow.

Users may not be able to withdraw cash from any cash machine.

Nationwide has apologised for any inconvenience it might cause.