Telkom contract cancelation

Refuses to cancel contracts. Still sends accounts!!! Non payment of telkom contract shows a bad payment record on clearscore!!! I called in January to find out end of contract and when to call to cancel and was told contract ends in March and I need to call a month before the time. I then called in February, as advised, to cancel and was told I need to pay R804 for early cancelation. I explained that I was told to cancel a month before end of contract in order to cancel and was told that that's incorrect and I should call on the day or day before. I then called on March 17 to cancel and was told the contract will still run another month since I'm only calling now, I explained that every call I made since January 2029 was on their advice and that I refuse to pay for 1 more month. After much fighting and fussing they then agreed to do an immediate 24hour cancelation.... That has never happened!!!! I feel so hopeless and don't know what to do. I've even been to Telkom shop in Galleria hoping that they'd be able to assist but they said because my account is in "arrears" they can't help!!!! I wish someone can help me.... This actually pushes me to tears on some days!!!