Billing department of Telkom is useless

I have /had two accounts 1st one was ending end of Feb 2nd one is due to July So towards Dec /January when my first contract was due for renewal,I specifically indicated that I will not be able to continue with the same,but they loaded data without my consent ,so come end of March they debited the amount of R200 and something and I reversed the debit because I gave firm instructions that I would not proceed with the 1st contract So now I got my statement to amount of R1000, blocked second account but they still charging it on the statement

They now handed me to credit bureau,they *****ed my Credit score They charge me the reversal amount