MTN's poor customer care (Customer "DONT" care)

Useless customer care center. they should rather close it down. its a waste of resource. I normally receive 20GB of data, for the month of April I received 15GB. so I called MTN, a consultant did a check and identified that I was correct. He raied a ticket so that I was credited with the 5GB that was due to me. To date after another 5 follow up calls and many emails to the customer care department. I still have not received the data that was due to me. I get armature consultants that do not read the history of the ticket logged and say according to the system the data allocated is correct. I would not be typing this review if that was the case. eventually I had to buy the extra data that I was short off. If MTN can help with such a basic query, how will they be able to handle something more complex? I guess I know my answer and will be migrating to an alternate network going forward. another example of how the end customer loses out.