Billing of Telkom

I am so fed up with phoning Telkom everyday for the past 3 months. Im being billed 2 voice lines and 2 internet lines at my residential address. They keep suspending my internet because i dont pay the other lines but how can a person pay for a service that is not in use. They keep assuring me the matter is resolved but 3 months down the line still the same. Suspended nt account twice this week. Really. What must i do.