Absolute pathetic customer service

I upgraded one of my numbers in March. I was supposed to get 100min 200 sms and 300mb data per month. I only received the minutes. I have been back to the Mtn store where I upgraded my number many times. They have gone above and beyond in NOT helping me. They just don't seem to care. They just tell my I must phone 135 and sort this out. They don't care. So I phone 135. They want to see the contract. I mailed the contract to 809. They say I must only get minutes. I go back to the store. They give me the form from which I chose my contract which shows the data included as well. I mail it to 809. A new agent replies and doesn't know what the hell is going on even thought the call nr is in the subject line and the whole email trail is in my message. I email the contract and the form again. A new agent gets it and tells me my contract expired. What??? Now I reply and ask them what am I supposed to do??? New agent replies and says that no upgrade has been done and that I must please send the contract. AGAIN?? I have sent it 3 times already. Can I please get someone who is remotely competent to help me? Why must it be so hard? If you want me to go to Vodacom you are doing a bang up job of it. And I also cannot make any calls even though there is airtime loaded.