MTN a rip-off

DONT GET AN MTN Contract they charge whatever they want. I have been overcharged R4000 on a closed account of R149. I have spent hours trying to get someone to help. If you get a phone contract for your child at a certain value you could be charged any amount. DONT GET AN MTN CONTRACT. See the response I got - Yello, kindly note third party content subscriptions are not part of MTN services. The registration of these services is completely voluntary and is activated on the handset by the user of the device. Therefore, the billing solely gets traced back to the MTN number. You can avoid this by not responding to SMS's Ads/ SMS competitions, also avoid clicking on internet sites pop-ups and constantly check for active subscriptions by using the USSD code *155#.