50 Minutes hold and 5 calls to buy try 10Gb data

I needed to purchase more bandwidth but reached my online self-service limit so I called MTN to purchase an additional 10Gb. The first (call lasted 10 minutes) operator, Sibonghile, said she had done it, created a pin and sent a request to increase the self service limit but an hour later, still no data. The second operator, Zanele, hung up on me after holding for 12 minutes. The third call I asked to speak to a supervisor and was cut off after 10 minutes holding. The fourth call was 22 minutes and the helpful operator, thank you Thandokazi, told me she could not load the data because the system was faulty. Once again, no supervisor and a long hold. Still no data. <br> At this stage, after trying for 2 hours, I still have no data. Why does MTN make is SO difficult to give them money??? I've been a client with MTN since cell phones first arrived in SA and this is the worst service yet. Shame on you MTN.