Worst service ever and just cant get you out of my life

I have been with Telkom for many many years. Always having a issue here and there. But in March my husband lost his job, We tried as we could to pay Telkom every month, But there was one month we could not pay and went over to the next month. I would have paid that double instalment. Next think I get a call from Telkoms Attorney advising that I did not pay and they will hand me over. NO ONE BUT NO ONE, picked up the phone to warn me about this. I made arrangements to pay that 20th. I called in to cancel my Telkom line, No I need to mail them. I made sure I paid the out standing amount in full. I have not used my Telkom in 2 months at the stage. I sent my cancellation email, NOW I received another account to pay R1100. HELOOOOOO. I have paid what I had to pay. I want you people out of my life. I will not pay this amount. I want someone that knows what is going on in Telkom to contact me. TODAY STILL.