hello, i have tether berry on my 9700 but problem is i cant get an accurate mb data usage on it. i tried going to 100mb on the teteher software and check my usage with the customer representative and he told me that ive only used toptal of 7mb and he told me that its the updated one so im confused. is tether usage / history accurate or i have to be carefull for my usage? i have 2gb data on my plan with bell