British Gas prices are coming down by an average of £160* and to celebrate this great news, we are giving away, £600 worth of Marks and Spencer vouchers to the value of £100 each for six of our lucky readers as an extra treat.

From March 12, 2007, British Gas will cut its standard gas price by up to 17 per cent and its standard electricity price by up to 11 per cent.

And that's not all. For customers wanting to protect themselves against future price fluctuations, British Gas is launching a new Price Guarantee 2008, at no extra premium, to guarantee their new cheaper prices until May 31, 2008**. For further information, visit www.house.co.uk/guarantee.