A NatWest television advert has been banned over "misleading" claims about the bank's Saturday opening hours.
Complaints said the advert misleadingly implied that all NatWest branches open on a Saturday - when the bank admits only 675 of 1552 branches do so.
The Advertising Standards Authority (ASA) ordered that the advert should not be broadcast again in its current format.
NatWest apologised and said the advert was being amended.
The ASA said the offending section of the advert was a voice over, stating: "NatWest has made a public promise to become Britain's most helpful bank. It's why we created our customer charter. It's why, when you told us to open on Saturdays, we did. And why this year 160 branches will open earlier and close later."
The bank told the ASA it had been trying to highlight its customer charter and commitments - which included Saturday branch opening.
But an ASA spokesman said that while the advert focused on NatWest's charter, viewers would understand the claim about Saturday opening "to mean that all NatWest branches were open on Saturdays".
"Because we understood that that was not the case, and there was no qualification in the ad to explain that the claim applied to selected branches only, we concluded that the ad was misleading," they said.
A NatWest spokeswoman apologised saying: "We recognise there could have been confusion with the advert and have already amended it."