By Ephraim Itota Telephone subscribers in Nigeria will pay more for data and airtime as the Nigerian Communications Commission (NCC) on Monday approved a 50% tariff increase for telecoms operators in the country.In a statement, a spokesman for the regulator Reuben Muoka said the price adjustment though lower than the over 100% requested by some network operators, was arrived at taking into account ongoing industry reforms that will positively influence s...