While I thought the Twitter number I had been using was rolled into my UK limit, it looks like texts to the "Channel Islands" are treated as outside of the UK - but I cannot find anywhere on Orange's site how much that costs a pay monthly customer of any sort. If I've been charged 35 p per message, I have been racking up some fat, fat charges for Orange.
I hate Orange. I should have been on TMobile by now but my move screwed up my credit rating. Oh, the rage!