Telkom worst customer service

My account with Telkom is suspended due to insufficient debit order amount. I requested Telkom to cancel my broadband account when I upgraded to fibre through Telkom. The broadband account was not cancelled and they continued to bill me for it since November 2022 until March 2023 when they suspended all my services. I have called the customer service and sent them emails since November but to no avail. They are the worst customer service company and do not care about their customers.