[wco81]

So I wonder about this fair use restriction, which they have yet to spell out.

Someone living in SE France could cross over into Italy and get a TIM SIM for 30-35 Euro which would give them 10 GB.

There is no prepaid bundle in France that is anywhere near close. Well maybe Free but their network isn't the same.

With a TIM SIM, they could probably roam on the best French networks.

So I don't know how they'd track it, unless it was on a post paid subscription. For all TIM knows, it's a French tourist to Italy who buys the SIM for a vacation, not to use it mostly in France.

And Orange may see more roaming on their networks from Italian SIMs near the border area. But how would they be able to tell if it's a tourist or if it's a French resident who should have bought an Orange SIM?

Unless they're tracking IMEI numbers of each devices, like they notice devices with certain numbers are roaming in France with an Italian SIM month after month, year after year.