Pathetic customer service

I initially called into the customer service department at 2 pm today to bolt on data to my current contract and was advised after approximately 5 minutes that it was active on the network. After another 5 minutes and rebooting my phone, the data was not on. I called back in to the customer service department only to be advised that it is not loaded as there was a network issue???? I was then advised to call back if i had not received the data within the next hour. At 3:30pm I called in and spoke to Smangele Sibiya who said it takes 2 to 24 hours to bolt on data and that there is nothing else she can do. How is that really assisting with customers service experience in a positive light? At 9pm I still have not received the data and call in to ask what is happening and where the data is and I'm told that it will be escalated but the department is now closed as they work business hours???? Why wasn't Smangele Sibiya taught this???? It was still within the business hours was it not??? I asked to speak to the manager on duty and spoke to a Gerard Nair who now decides to continually advise that he understood my frustration but cannot do anything right now. He went on to advise that he also experienced issues on the network??? What does that actually mean??? That the network is always problematic? ?? To top it all, whilst speaking to me, his agents are laughing at me in the background!!! Is that really the way that mtn as a brand delivers services to their clients???? They are made a mockery and do not receive the service required? I have always been a proud mtn supporter but of late am re-thinking whether I should remain with them as poor service is now their protocol!!!