Doctors surgeries hit my massive increases in service charges say they could be forced to sack staff as a result. They warn that patient care could be affected as a result. It comes after the NHS re-calculated the amount of money GPs have to pay for buildings they rent from the Health Service. Some have received bills with increases of up to 1,000%. Tom Savvides reports from the Faversham Medical Practice in Kent, where GPs are refusing to pay the extra costs.