By Kate Holton and Paul Sandle LONDON (Reuters) – Britains Vodafone said it was finally seeing early signs of a turnaround due to a growing number of customers and the take-up of more expensive 4G services, following yet another torrid quarter hit by fierce competition in Europe. The firm, which is investing to improve network speed and coverage after selling its U.S. arm in a $130 billion deal, said organic service revenue – stripping out items such as handset sales, currency movements and acquisitions – was down 4.8 percent in the three months to the end of December. Chief Executive Vittorio Colao said, however, he thought the group could be nearing the bottom in terms of trading due to a number of green shoots on the horizon. Those included an easing of the price cuts imposed by Brussels, an increasing demand by customers in emerging markets for Internet on their phones, and a revamp of its pricing which has drawn more customers to pre-paid contracts in key markets in Europe.