I use an Android phone and the O2o tarif with the Tages-Airbag tarif option and I have noticed on recent invoices that the Internet use is very high and I'm getting charged the maximum €3.50 limit each day (see file attached). I know I am not personally surfing via the mobile network for that long each day so I'm guessing there must be an App or something that is using the data.
Is there any way I can check this?
I have tried turning off Background Data (and when I remember) the Packet Data but this means I cannot receive MMS messages and need to switch it back on when I want to send an MMS.
I have tried using the 3G Watchdog App but that only seems to show the volume Apps are using not in minutes, as the O2 invoice shows.
I am thinking about adding the Surf Flat M option anyway but does anyone have any advice?
Please feel free to PM me or reply in German. Thanks!
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