This excerpt taken from the VOD 20-F filed Jun 8, 2005.
Net other revenue
This measure is presented in the trading results for the mobile telecommunications business and the Groups key markets. Net other revenue excludes revenue relating to acquisition and retention activities as such revenue is deducted from acquisition and retention costs in the trading results. The Group believes that this basis of presentation provides useful information for investors regarding trends in net subsidies with respect to the acquisition and retention of customers and facilitates comparability of results with other companies operating in the mobile telecommunications business.