British Gas is the provider of energy, homeservice in the United Kingdom (UK). It trades on the stock market by the name of British Gas Service and British Gas Services Heating Ltd, which are both the subsidiaries of Centrica. British Gas is the biggest energy supplier in UK and has been dominating the energy and services market in UK from a considerable time. Apart from business, British gas has been actively participating in sponsoring sports with its swimming team, which started from 2009. It is also tremendously active on television advertising as well. British Gas introduced Cheryl Cole in an early 1990s advertisement as a child, about a decade before her music career began. British Gas has also sometimes been accused of aggressive telephone marketing giving unsolicited calls to its customers. Their aggressive advertising cost them 1 million Euros in 2014 when their marketers had advised hundreds of people to switch to British Gas from their competition companies.