Oh my magenta1658068 ! That's not supposed to happen.
It's possible this could be stemming from an app or two. You can check the data usage using our Data usage: Samsung Galaxy J7 page. Give that a shot and see if this helps shine some light on whatever it is on you device that could be data-hunger. Please keep us posted on this so we can help. Thanks!
Hey there! Were you able to find out what is using the majority of your data using MC's steps?
Hi, there! Just touching base here. How is everything going?