Ann Robinson from comparison website uSwitch says energy customers need an annual renewal notice to get a better deal. She made the claim after British Gas reported a rise in profits for 2012 of 11%. She said: "Customers want a fair deal but with the 11 per cent increase in profits I think they're going to feel very hard done by." Ms Robinson added that only 15% of customers switch tariff providers. "People lack confidence and don't know how to switch," she said.