For some reason when I try to access my original thread on this subject I get "403 Forbidden" so I have started it again. Just back from a cruise where I was trying to be very selective in my use of data roaming but failed a couple of times. I was using an Orange and O2 daily plan allowing respectively £3/30Mb and £2.50/25MB. On two occasions for no obvious reason I suddenly racked up about an extra 50MB data. It was when I discovered the photos I had taken on my iPhone had appeared on my iPad that I realised that photo stream was the culprit. Moral of this is when you switch on data roaming abroad, switch off the photostream feature. As an aside, before I left when I called Orange to switch on the £3 daily data plan, I asked them to confirm that I would receive text messages warning me when I was approaching the daily quota which they did. The reason I did this was because on a previous trip I didn't receive these messages even though they had said I would. On that occasion they reimbursed me my excess charges. Surprise, surprise, I didn't get any this trip either although I can see excess charges of about £35 on my Orange account. It's getting a bit tiresome to have to argue this every trip, but it does mean I can go over my usage with some impunity.