I monitor my data like crazy. I have alerts set up for every increment possible (I want to say 10%, 25%, and 50%). I get a calendar alert on the day of my billing cycle so I can refresh my phone's usage stats. I have to, I don't have that large a data plan, 2GB, plus rollover. I have wi-fi assist on, but keep track of that as well - it's currently under 1MB for this period.
So imagine my surprise when today I get an alert that I've used over 50% of my data - even though I hadn't gotten alerts for 10% or 25%.
I also can't figure out how I've used up so much data - I didn't get any alerts the previous month, so I must have used less than 1GB (otherwise I would have at least triggered the 50% alert) so at least a GB should have rolled over, so I went from using <1GB in a month (part of which I was on the road and relying a lot on maps, no less) to >1.5GB in less that a month. But I check and my rollover was less than 1 GB. But again, no notification last month that I'd hit 50% (nevermind 10% or 25%).
Here's where it gets even weirder - so I said I always refresh my phone for a new billing cycle... my phone only reports me having used 0.380GB this cycle. And honestly, I usually reset my phone a day early (because I'd rather have an overestimate of my data than underestimate).
And when I check my usages reported online, it has me doing things I didn't do this month (like upgrading software).
I don't want to sound like some conspiracy nut, but it almost seems like Verizon is waiting until close to the end of the data cycle, and then just "tacking on" data I haven't used. I can't think of any other reasons why 1) my alerts aren't pinging before 50% (if at all) 2) my phone is reporting DRASTICALLY lower usage than the verizon site 3) the Verizon site is showing data being used at times when I am not just not using my phone, but, even if there were some low-level background apps running automatically, it's on a stable wi-fi system, during low-traffic times (like, I know I'm not up at 5:13am, when some of this data usage is reported...but neither are most people, so the wi-fi shouldn't need any "assisting").
I don't know why they would do this, except to decrease how much rollover data I get (and potentially charge me for overage).
Does anyone else have this problem?
I'm on an iPhone 6
Oh, and I tried contacting customer support about this. They said it had to be handled by a tech person, and transferred me. The tech person said it had to be handled by customer support (they wouldn't even transfer me, just gave me the contact info for customer service and that was it).