Data Usage Meter Incorrect & Cannot contact ANYONE to speak about it

So firstly, that was the first random username I tried that let me join.....even the forums are impossibly hard to connect with lol

Down to the issue, I received notice on the 22nd of the month that I had used 75% of the alloted 1.2 TB.....

Ok, not impossible, I was home a lot but I'm kinda frugal with it.

Then 5 days later, I received notice I had used 90% of the data for this month.  I was not home and all devices were turned off for 2.5 of those 5 days.  

Therefore, somehow, in 2.5 days (and I do sleep) I used 15% of my monthly allotment by streaming some shows, writing some emails and playing a few phone games?  Give me a break.

How, in 22 days of being home nearly all the time and using devices and streaming shows, can I accumulate 75%, and then in 2.5 days right at the end of the month I've somehow jumped another 15% to a total of 90% usage?  

If any of the 5 phone numbers I've found in the last few hours searching connected me to ANYONE instead of just disconnecting, I wouldn't be having this rant online.