This answer is no help at all.
Since the last update my mobile data usage has increased pheonomally.
In the last 13 days I have used 2.5gb of data when my average monthly use is 1.5gb.
I have not changed any settings, and I don’t want to have to change settings every time apple issues an update.
Why is it that when Apple bring out updates, frequently there are problems?
Why can’t Apple test these updates before issuing them?
Why doesn’t Apple warn us that updates we are downloading and installing will increase our data usage?
Why is Apple customer support so poor?