Not getting what I paid for after several follow ups

South Africa a very dissatisfied customer of many years. After so many attempts to rectify a error on your side you still fail to give me my data that I paid for. My data is due to be received on the 6th of every month. It is now the the 23 and I am still waiting. Your customer service help line is terrible you wait forever to get help and then so many security question even for a follow up with reference number. I thought after 4 attempts of rectifying the error by calling I figured let's try a email. I used the same reference number stated my frustrations only to be asked for security check again and to be then told ok here is another reference number. I am getting fet up with this bad service. Can you please get your act together and rectify your errors. My reference to my error Dear Customer,Your query *** has been opened. Please contact call center if you require more information. Thank you for using MTN. Have a Y'ello day.