O2 fined £10.5m for overcharging departing customers Around 140,000 customers overpaid, according to Ofcom O2 fined £10.5m for overcharging departing customers To continue reading... Upgrade Computing helps IT leaders to make technology a revenue and innovation engine for their businesses. Our unique package of news and analysis enables you to discover what the smartest minds in the industry are doing and scan the horizon for what’s next REAL-TIME NEWS AND ANALYSIS: find out what’s happening and why in the technology space including news on your competitors and regulators – delivered to your desktop or mobile in a daily newsletter MARKET TRENDS: learn about the implications for you of the latest shifts in everything from AI to machine learning and blockchains – evaluated in a new monthly editor’s newsletter for CIOs