[Q] Data roaming setting ignored(?!)
Two days ago I got a nasty surprise call from my mobile provider asking me to make a payment 120 EUR to cover the costs of my unusually high data usage abroad that morning?! My Nexus 4 has allegedly downloaded 19Mb of data while in roaming - even though setting "Data roaming" was set to off. I was abroad 2 weeks ago, for 2 weeks and yet that time phone behaved as expected and no data was transferred while in roaming.
Is it possible that the phone has all of a sudden decided to ignore the "Data roaming" setting and use the internet?
Or could it be an error made by mobile provider?
How do I prove this is not my fault?! Is there a detailed data usage log on the phone?
BTW Phone is Nexus 4, Android 4.3, build JWR66Y (so pretty much the latest software)