Social Internet showing on Phone bill

[janaus]

Unfortunately, I am keeping an eye on OH phone bill.
I have noticed some use of Social Internet.
He is not computer/ phone savvy at all.
He does not have Facebook. He doesn't have anything.
But I am wondering if something can be hidden from the screen of Ipad.
It's nearly every day, some use. Doesn't seem a lot. Maybe 65 kb, or 1000kb some times. He doesn't have email either.
Does anyone have ideas what it might be.

He doesn't need a doctor, he's not ill. He's a cheating scumbag, that is all.