dissatisfaction service ever experience

We upgraded our internet contract to a faster speed with telkom about a month ago. Our internet speed is 2mbps and should go up to 4mbps. We have since rang 3 times a week and everytime we have waited 20mins to speak to someone. Everytime we speak to someone they have no idea what they are doing. Today we asked to speak to a manager and they wouldnt put us through to a manager. very unsatisfied customer.