Originally Posted by YuropFlyer

If I completely switched mobile data off, I didn't had the "ghost roaming" issue with Salt (ie, I could still use it for calls / SMS)

That meant, when I was away from Switzerland, I "just" had to remember to switch mobile data off before activating flight mode, so that it wouldn't be automatically switched on when I reconnect it (and a few seconds were enough to trigger the ghost roaming - all, of course, while roaming data are off) - the main problems I had when I was near the border, and it would switch over to a German / Austrian / Italian / French network, with mobile data obviously be on.

Anyway, those are problems of the past. I just can't believe how a company would run a business like that - I agree, they should lose their licence, but they might lose their customers faster if they continue that way