Re: Mobile data is disabled but data is still transmitted
I'm sure I'm not the only one wondering why this is an issue, concerning being charged for the data. Every carrier I've seen (in the U.S. at least) requires a minimum data plan on any smart phone. So even if your data use was truly zero, you'd still be paying for some. Your usage is well below any minimum cap I've seen, so wouldn't expect you to see any additional charges from it. Are you saying you're on some sort of a la carte type plan instead of a traditional capped plan?
I'm with Pluupy, though. The only thing I can think of is MMS messaging. If you've still been sending/receiving those, that will use mobile data, even if on Wi-Fi. It also means your data isn't truly turned off. I guess there is the long shot that you have a software bug, but it's not one I've heard of before.
And since you don't really seem interested in any comments that don't immediately answer your question correctly, I suggest talking to your carrier. Hopefully they'll be able to better assist you. And if you are on an a la carte plan or whatever instead of a standard plan, they may even be able to put you on a data block. That way no mobile data is sent from them or accepted from your phone. Even if you left your mobile data turned on, you wouldn't be able to use any. I'm shooting in the dark there, but something to consider nonetheless. Your problem isn't exactly common.