I have just arrived in France and my account says roaming is on.
I use my SIM card in a router as a hotspot. In my phone it says I am connected to Bougyes network yet the internet icon on my router is not illuminated so, whilst the wifi in the house is all showing active there is no connection from the router to collect data.
The router was working fine in England on Monday night before I left.
Sadly, there is no number or email by which I may contact ID Mobile to get help.