Nationwide has warned millions of members that charges applied to certain accounts are about to change. In emails to customers this and last week, Nationwide explained that some terms and conditions will change in a big shake-up.

Nationwide is rolling out changes from April 9 "so that you can get your money back if you have made a payment because you have been a victim of a scam". Nationwide said: "We are adding new protections so that you can get your money back if you have made a payment because you have been a victim of a scam.

"This will normally be within five business days from when you report the scam to us. We will refund you up to the maximum amount set by our regulators if the payment was made in British Pounds by bank transfer to another UK account. There are some circumstances where you might not get a refund."

This includes ignoring a warning from the building society the police or another authority that you might be a fraud victim, you know or suspect that you have been the victim of a scam and didn’t tell the bank quickly, and not giving Nationwide iinformation it has "reasonably asked for to help us investigate a possible scam."

it said: "You may not get a refund if you don’t tell us within 13 months of the final "scam payment from your account. We can take back any refunded amount (after giving you reasonable notice) if we later believe you acted fraudulently when making the claim."