Can't get data usage on one of my contracts

I have 5 contracts with Vodacom. One is with my kid in boarding school. His data usage has suddenly spiked. I phoned Vodacom and asked them to tell me what sites are being hit. They couldn't't, citing personal protection. Fair enough. I then asked that they send me the daily data usage report. I don't have itemised billing on my child's contract. They want R22 PER PAGE to send me that info. That's me done with Vodacom. Of course, it must be great for them having a kid's phone bleeding data.