We have a friend on our account who seems to have no self control over his data usage. He currently has the $55 plan which gives him unlimited Canada wide calling, unlimited text and 1GB of shock free data which turns your data off once reached the limit. When a new month begins the data gets turned back on. He literally uses that data in one day. And turning your data back on is as simple as a text message. Now he keeps adding on data knowing we will pay for it. How can I prevent him from adding on that extra data?