I recently after MONTS of having excessive date us on a line that is not used frequently discovered and was confirmed at an AT&T store that the Apple IPhone 6S on this line was running cellular data non stop. I have screen shots of the phone running while not being used and connected to wifi. Data has resulted in one overage and likely another not to mention it has consumed immense amounts of data. Consumes about 191kb every 4 hours around the clock even when showing connected to wifi and not in use. I've just finally been referred to Apple for the first time to do a warranty claim. However I was told I would get data forgiveness for the month but a supervisor told me there is no such thing. Again been going on for a long time with the phone consuming anywhere between 8-12 GB each month alone mostly on its own while my device I use constantly consumes 1-2 GB it appears. Anyone else experienced this? I am absolutely repulsed this has been going on all this time, they suspected the device was defective even in July yet never referred me to Apple, have not honored their word on crediting back the excessive date or overage charges and lead to constant use of our phones while walking on egg shells.