The National Energy Regulator of South Africa (Nersa) says it has not approved an increase in the maximum price of pipeline gas to R133/GJ and insists that it “would not approve any increase which doubles its previously approved maximum gas price” of R68.39/GJ. It also insists that only Sasol Gas, which has confirmed that the 96% hike became effective from August 1, could respond to questions regarding the basis for the increase.