O2

I’ve picked up £12.90 of additional costs whilst in Canada and the USA. I have had Data Roaming switched off the whole time and have not made or received any calls. I have sent 3 or 4 texts but only when on WiFi. Please can someone help me understand...

I’ve been in Canada and the USA for 10 days and have racked up additional charges of £12.48 despite having Data Roaming switched off the whole time. I haven’t made or received any calls or sent any texts except when on a domestic WiFi. I did make a S...