Welcome to the community and thanks for posting. Sorry to hear you're unable to data roam in France.
I'll send you a private message to see if I can get to the bottom of this for you. To view this click on the purple envelope on the top right.
Hope to hear from you soon.
Can make calls, but no data? Check your "Virgin Mobile APN settings"
Credit where credit is due, Thanks Rich - something obvously needed switching at Virgin's end and now all is working in France.