MTN customer support. 0 stars. Please MTN help! Why is this happening.

Wow. Where do I start. The worst customer service ever. How are MTN even hiring these so called MTN Champions (customer service support representative)? They are absolutely useless. And as for the supervisors always in meetings. they Cannot get back to the customer. I thought moving onto MTN would be a smart move. I been with MTN now for 2 months. Worst move ever. I tried to load the voice bundle. R100, 280min. So I logged into FNB and bought my R100 airtime. When I checked my balance by dialing *136# i had R100. I followed the options to get my voice bundle. However after proceeding to purchase it tells me I have insufficient funds. I checked my balance and saw R100. I was confused about this so I left it and thought I can try again later. Later came and still no luck. 2 days later I tried to buy R100 again on fnb. That was successful. I checked my balance I had 100 + . I tried to buy the same voice bundle and it tells me I have insufficient funds again. I am now frustrated as I have more than enough funds. So I call MTN customer support and no one can help me. I keep getting different answers and they have not resolved my issue. I have made several call attempts with MTN and requesting for a supervisor to assist me and I have not received any feedback. Everytime I call, your ****** supervisors are in meetings the whole day. For what?. So if the supervisors can't assist please get someone competent to assist then , because the ****** supervisors are too busy to resolve issues that cannot be resolved by level 1 who are absolutely god damn useless. This is Disgusting service and turn around time from MTN. It's shocking to actually see and witness this. How have you even gone this far in life? If this does not get resolved i will simply find a another service provider. AND I have family and friends with MTN and I will be sharing the news with them about this fantastic experience i have had with MTN. And trust me I will convince them as well to get off MTN and find another service provide. They can also spread the news too. See how nice that works for you guys losing several customers in a week. In a month and in year. Please change everything you do when it's comes to customer support . And get more competent people please. Start there!