Randomly came across a thread over pakwheels about random balance deductions, so posting it here
I was victim of same fraud of random balance deductions too, on multiple networks. Even PTA complaints did not help, but now soon using some high end sources, and this complaint will be escalated to senior most officials of PTA.
It's basically a 4G related thing and ONLY happens to those who have not subscribed to any mobile data buckets.
It's a 4G technical restriction, that the 4G internet connection of a consumer is always active from companies back end, even with mobile data off and there is very slight (5-10kb) mobile data usage happening at back end, several times a day causing balance deductions.
These companies are all very well aware of this thing and even know the solution of this problem, but to fraudulently make money, they don't resolve it and pretend that issue does not exist.