unfairly threated and given false info

1year ago we took out an contract with Telkom8ta in midlands mall Pmb. After 2months I changed banking details, called the call Centre to notify them. They asked me to fax thru my 1st page of bank statement which in did. One month later I called again to find out why my contract was cut, they told me non payment, I explained to lady I sent the fax thru.I then received a call from collectors thsepo who said i must pay 1500 to reconnect my line. I did so faxed thru Proof of payment from midlands mall branch. We then called Thsepo he said it is no longer in his hands it now 8ta who mist reconnect. We went back and forth 3months went bye, then called again and said we MST pay 2300 to reconnect. After that call a lady by name of lesly called and said to pay the money and she will make sure its reinstated. Midland mall have got all correspondence she has not answers our calls since we paid monies that she requested we must do for our lines to be reinstated,after going back to midland mall branch we called her and she said she did not say anything and there is nothing she can do, since then her line is staying busy and an reply email is coming back \out of office"please respond asap"""