I've just added the roam further pass. So I get to use my data allowance when I am in the US. Which is great.
I already had the travel data pass from previous trips. This charges £4.80 a day for 500mb of data when away in the US.
I am assuming that when I am away and using data it will be using my data allowance because I have roam further added. And that if I used up that allowance then the travel data pass kicks in and I pay £4.80 a day when I use data. Is this correct?