Billed for service that was not recieved

For the month of February form the 3-28 I had no ADSL or Phone line, due to a broken cable to the exchange. But yet I have been billed for my line rental for February. I would like to know why I must pay line rental when I had no line. I would like to request a credit for the line rental for the period 3-28 February to be passed not only for the voice section but also for the ADSL section. I would suggest Telkom contacts Mweb who is my ISP and tell them that I did have no line from 3-28 February and that they must refund me for that period. I hope this will be done ASAP, else I will be going to the consumer commission and file a complaint with them.