Number locked for incorrectly registered by dubious telkom agents

Im having a nightmare with telkom. In 2019 i was approached by a people from Telkom who were promoting data deals in the street. They sold me telkom card and they asked for my details to register the sim. Yes the data deals were sweet and then i started using the sim and also realized that it was cheaper also to make calls. Then boom yesterday i woke to my shock to find out that my line was no longer making calls saying that your account is locked. I called the call center and i was advised that the line was not registered correctly to my shock and they advised me to visit their nearest store to get it sorted out. When i got there they said there is nothing there could do for me since i bought the line from the street. Im so disappointed because as i am lodging this complain there are so many telkom gazebos aound the streets with those same agents promoting telkom products. Whilst i was told it was my fault i bought a sim from the very same people. I think for anyone who is considering switching to telkom must learn from my situation. This service provider is not fair. How can a normal service provider disrupt a service without even notifying me and why did they allow me to use the number for so many years. And now at the end decides to inconvenience me in this manner. Im sp dissatisfied with telkom. At this moment i dont care about their service all i need is my number so that i can port it to another service provider and move on with my life.