Exorbitantmonthly bills

For the last 6 no the my mom's cell phone bill has gotten higher and higher. I am buying more data monthly for her thinking it's Facebook utilisation. I haven't received a bill for her for ages...so can't even see the itemized billing. Today I go to a shop like last week to try get for the bottom of it...thelady shows me 15 WASP subscriptions! Ranging between R7.50 and R15 a day! That's thousands of rands a month. Is it too much to expect to have Vodacom price t it's users. And this nonsense of double confirmation! My mom received no sms confirmation or anything. And I get no copy of a bill to show what's so expensive. My mom is 71 years with a R2000 - R3500 bill a month. You should be ashamed!