LONDON, July 24 (Reuters) - Vodafone (VOD.L) reported better top-line growth on Monday, driven by higher prices in Britain and improvements in Germany, Italy and Spain, marking a positive start for new Chief Executive Margherita Della Valle's turnaround plan. She said on Monday that organic service revenue had improved "across almost all of our markets", as it reported a 3.7% first-quarter rise. The decline in service revenue in Germany more than halved quarter-on-quarter to 1.3%, as price rises partially offset the impact of customer losses over the last 18 months. Growth in service revenue in Britain, where Vodafone announced the merger of its operation with Hutchison's rival network Three last month, accelerated to 5.7%, boosted by strong growth in consumer and price increases. In Italy, improved demand from businesses helped reduce the service revenue decline to 1.6%, from 2.7% in the previous quarter, it said, while Spain saw a smaller improvement to a decline of 3.0% from 3.7%.

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Persons: Margherita Della Valle's, Luka Mucic, Della Valle, We've, Ahmed Essam, Paul Sandle, Kate Holton, Sharon Singleton Organizations: Vodafone, SAP, Thomson Locations: Britain, Germany, Italy, Spain