I have a Galaxy on O2 UK. It's via work, and on a business tariff that boasts unlimited data. After a couple of huge bills, it turns out that apparently 3g data is unlimited, but 2g data is charged at the usual eye-watering rates. Phone Bloke is checking with O2 whether they are serious. In the meatime, I'd like to disable 2g data connections. I can't find a way to do that. Anyone got any cunning suggestions?