Number change

So i am writing a complaint again about the service or lack of service i am getting from telkom. I have requested that my prepaid number be changed to a contract number when i took out a contract with telkom in September. A case was then opened in october. And guess what, i still havent got my number changed. I am not sure how to explain that the number i am requesting to be changed is a business number and i need it as a matter of urgency. Nothing seems to be done about the case. Am frustrated with the lack of service from telkom and i have only had a contract with them for less than 3 months. I dont even get a call to be updated on whats going on.