The consumer group Which? says not all firms are complying with rules limiting charges for credit and debit card use.
Since 6 April new rules say firms should only charge what it actually costs them to process a payment. The Office of Fair Trading (OFT) estimates this at about 2.5% on credit cards and about 50p on debit cards. But some customers say not all firms are complying, says Which? - which adds that consumers who feel they are being overcharged should complain

New rules

Many firms have changed their charging policies to comply with the new rules but some at least do not appear to have done so. Since 6 April customers have been contacting both Which? and Radio 4's Money Box to complain. Richard Lloyd, executive director of Which?, told Money Box that firms had to act: "We've had a huge response from people who are saying companies still seem to be charging excessive surcharges. Now it's a question of how well this can be enforced and that the clampdown actually happens." Some travel firms in particular still seem to be charging a lot more for credit card transactions than the OFT guidelines indicate. Brian from Tyne and Wear booked two flights costing £688 with the firm Jet2.....Read more here