.... Last week The Sunday Times suggested a way to get round paying rip-off rates to call banks and other companies on these numbers.
So-called special service numbers such as 0845 and 0870 do not work when called from overseas. The banks must therefore give customers an alternative number if they are travelling abroad. But these numbers also work from within Britain - you simply remove the +44 UK code and add a zero. Alternative local-code numbers for many well-known firms are also available through the website Saynoto0870.com