Cancel my adsl line!!!!

I owe Telkom R1295.87 for The month of january. I still need to pay them for november and december but werent getting any invoices/statements. Been phoning them since i got the internet for **** service delivery. I filled the for to cancel the service in december and mailed it to them caused i moved from that adress to a new one. I spoke to a lady regarding my outstanding balance that was about R2800.. more or less. I told her that i want to cancel and that i would pay that amount when i get money... I dont have money to pay it so i gave them the letters that im going to cancel. And that i will pay the nov and december bills. Now they are charging me to pay january but the service is suspended??? Thats *** peoples money!!! This is a month to month contract and now i need to pay for something i didnt even get!!!! This company is *** peoples money... I try to call them on my cellphone and u just cant get through to the ***!! Can someone assist me to cancel this ****.. and help me with the billing issues... now i need to pay for this month aswell. 2 months of suspended internet after i cancelled and trying to pay. I dont have money. Thats why im trying to cancel.