Just had my first data charges, it was down to a a bit of bot testing yesterday. Must have accidentally called GMPC too many times. Swines! OK, so it's only £1.11, but it's the principle...
So, a word of warning - be careful when testing!
"You incurred a charge in relation to usage on 27th of May of £1.11. We have not debited your account today. We want you to avoid being charged in future." (Yeah right!)