Paying for a line that is not fixed for 3 Months

Our Telkom Voice landline has been down for 3 Months, or longer. we logged numerous faults. To date the line still not fixed. Telkom call us and directly after the call send a sms that the line is fixed. So we are paying for a service that we are not getting. Last month they billed me almost double the original agreement amount. <br> <br> I'm really irritated trying to sort out this problem but they always put me on hold when phoning in.<br> <br> HELP HELP HELP!!!!<br> <br> Wish I didn't need Telkom.. :(