From next week, most people using their mobile phones to call the Department for Work and Pensions about state benefits won't be charged for their calls. The DWP has reached an agreement with O2, Orange, Tesco Mobile, T-Mobile, Virgin Mobile and Vodafone to end mobile charges to many of their 0800 helplines. Around 70 helplines are covered by the agreement; they include numbers used by people making initial claims for benefits & pensions and to request emergency payments.