Originally Posted by ratmanhk
It happened on one day and never again. It was while I was roaming of all times. Cost £1,100.00. Brilliant. Vodafone Uk cannot explain what it was and why it happened on that day and not before and not after.
I'm not sure what to tell you then... If it's never happened again, then I'm not sure what the fuss is about, but I would still consider taking my advice above and just delete anything you're not using. Data usage is pretty hard for the computer billing system to get wrong. Your bill should have had the details of each connection, which would allow you to pinpoint irregularities.