Just wondering whether anyone can help. I upgraded to a Samsung Galaxy SII in March this year and i pay £6 a month for a 500MB data bolt-on. The first 2 months were fine, then in May i got a text a couple of days before my new monthly allowance was due to start, saying i had used 80% of my data allowance. I had the same again in June, this time about 5 days before, so i started turning off my background data during the day and occasionally turning off the packet data too in case something was running that i didn't know about. In July i received the 80% text about 10 days before my new allowance so i had to pay for an extra bolt-on. I've now had my new month's allowance and in just 3 days i have somehow managed to use 32% of it and i can't understand why or how. I've not used the net much at all outside of home (i connect to my O2 wi-fi at home), yet when i look online at what i've used so far, out of a list of 6 times there are 4 of those where i've been at home using wi-fi so that shouldn't be included in my usage. Can anyone offer any help as to what might be going on? I've contacted O2 live chat and they weren't very helpful at all. Thanks in advance 
I haven't downloaded Google + or anything similar. I deleted some apps last month that i never really used but that doesn't seem to have made any difference. I've just downloaded the 3G Watchdog app (thanks for the tip) so i'll see how that goes and keep my eye on things. If there's still a major problem in a couple of weeks then i'll take my phone into the O2 shop and ask for some advice.
Thanks for your help
