Terrible service and ********** billing

on the 20nth of December 2021 I went to rosebank mall to cancel my contracts with telkom. When I got there the lady said the system was offline so she made me sign manual forms and said that she will capture everything meaning both my contracts where cancelled.

end of december I was debited, had no problem with that since I understood the 30 day rule, end of Jan debitte in full again, even though I didnt agree with that I couldnt atleast try understand it . Now I got invoice showing that I am going to be debited again this month, that is incorrect, worse I havent used their sim cards since the day I left rosebank mall.

can you please stop debiting my account as I have cancelles the contracts please