Roaming charges while on WiFi
I don't know if this happens also to other people, but when I am abroad (no travel add-ons) and I use the phone constantly on WiFi I still get a long list of charges on my wallet for $0.01 or $0.02. I assume that the cell signal pings the tower anyway, even under WiFi coverage, so a charge is generated. The only way I have been able to do that is to completely deactivate the SIM card (I have a dual SIM phone, and I usually operate on a different SIM while abroad), but I don't think it should happen, because it never happened when I was on different providers, and even at a couple of cents at a time, I believe it can add up to a tidy sum that Fizz is charging customers unnecessarily.
Has anyone noticed the same thing?