New data has suggested a huge two million UK customers are not 100 per cent satisfied with the services offered by their credit card provider.

uSwitch.com, Marks & Spencer and Tesco rose from third and fourth place respectively from last year to the top of the price customer satisfaction tables, with 89.4% of consumers saying they were content with service levels overall. Whilst American Express, which had taken the top slot in 2008 has dropped to third place.

Other traditional card providers, Halifax, Lloyds TSB and Natwest came bottom of the league tables, with only 64 per cent, 63 per cent and 62 per cent of shoppers respectively being satisfied.

Last year saw supermarkets over take in popularity polls, stealing the limelight from traditional financial institutions in the customer satisfaction stakes. Supported by the dissatisfaction found in the recent research this trend seems set to continue throughout 2010.

"It is disappointing that customer service is still letting the dedicated card companies down. With generous rewards such as loyalty points, gifts, air miles or money off your shopping bill, it’s easy to see why the supermarket credit cards are doing so well,” said Louise Bond, personal finance expert at uSwitch.com.