No Feedback

I have been trying for a week to sort out my billing as it's suppose to be R399 Firbre which showed yesterday on my Customer Zone Today it's R900 I have tried calling emailing and using the WebAfrica Chat Room and I am getting no feedback or help. You call you are placed on hold and call disconnects, Email no response WebAfrica they end the chat without resolution. I need assistance as I need to pay my account but they don't provide details asks questions get no response. I am disappointed and I don't want to change networks. Please Help as I need my internet