I wonder if anyone can clear up my confusion with the O2 iPad tariffs. I was just looking again at their plans, trying to work out what happens when you have used up your data allowance for that month, before the 30 days have passed? This line on their site confused me a little: "If you find that you're surfing a bit more than expected and need more data, you can always top up 500MB extra. It's also important to know that at any time, you can only have a maximum of 5GB on your account." As it is a recurring monthly fee, would that be the same date each month? If you used up the data, say, a week before that, do you then have to add data on a daily basis (they charge £2/day for 500mb)? Or would we have to cancel the plan, then reinstate the plan, starting from that day, and do that each month? I'm probably missing something and have just got myself into a tizzy trying to work it out, hence I figured I'd ask here. Thanks in advance to anyone that might help. Neil.