Originally Posted by
freecia
I haven't used the loaded data, yet. 30 days would be 3 10-day plans (or 30 1 day plans), though the 10-day plan doesn't have to be used sequentially. It roams on AT&T in the US so you're welcome to try it ahead of time.
Another FT'ers 3HK roaming in JP experience here:
https://www.flyertalk.com/forum/30953289-post489.html
So if it's not used sequentially, are you telling me that I can pick the days that I'll be using data? If so how?
You've activated the data, but just waiting to find a day to use it?