MTN ************* network

I have been using MTN for more than 15 years now but the network is been so poor in service. Today I have purchased a data which I don't normally do the reason is that I don't get notifications when data is depleted and I just got an sms saying I have joined gaming for R3.03 per day. That money equal toR 93.93 per month and per year is R1127. 16 fortunately I have seen it and stop that gaming. How about old people that can't read or don't understand? Their money just being waisted without benefits. How can you allow such things to bill us and open accounts that are under your credit control as a network