It's good to be clear that you need to activate in UK, as I had intended to do it when our 12gb from 3 ran out in France.But not a problem.
Now I would imagine you could unpark the sim whilst abroad just with an e mail, as that number is already registered and activated.
Or if you want 6 months or more to get someone in UK to buy and activate a new sim and post.
At the moment I think Popit could be the sim of choice for motorhomers abroad and I don't want them to start thinking it's too much hassle.However I do fear, as a new business venture(I think) they may feel differently when they start getting the bills from their overseas partners, for all the motorhomers using their full allowance abroad.
Let's hope not as I don't think there's anything to match it at the moment.
Unless they come back to me with "of course you can use ALL your data abroad......
subject to our fair usage policy
)