Poor customer service.

Hi. In May 2018 a lady from MTN Yello Data called selling 3GB of data for R89. They debited into my account 1 June 2018 but I did not receive any data. 5 days after another lady called to activate the data. I was so angry with her. I told her i want my money cause I did not get any data. She told me that I must call the call centre to cancel and request refund. I called the call centre and I was told that Yello data is for contract numbers not prepaid. And I'm using a prepaid mtn number. In July again they debited into my account, still did not get my data. These people are cruel they take and take but no service from their side. Now I'm being told that they are investigating and it will take 21 days. Bethuna buyisani imali yam yoooo shirtless people taking people's money that is my money bring it back I am not asking I am telling you.