Worst company ever !!!!!

I had problems with my ADSL line I called in and I was told that TECH that wasn't even at my place said that its cable theft and they not going to fix it now at the time I knew adsl was busy being phased out I called and cancelled all my services that was in MARCH 2020 . In APRIL I sent complaint and FAITH emailed me back to ask for landline number , which I sent . Then a month later in MAY I was sent and email by ZOLISWA with cancellation order number ***A which should have been effective from 18/05/2020 . And and I was told it can take up to 2months which I then received and statement showing I have about R 1400 in credit but as months went on I continued to received statements and refund amount was decreasing .I called again and NICHELOUS BRIJILAL emailed me from Assurance cancellations on 30/10/2020 . Then on 02/11/2020 CINDY GOLIATH emailed me after I complained again to tell me line was still active and requested documents again . And I'm still getting invoices refund is now gone and I now currently owe them over R 800 iv emailed CINDY & Zoliswa no one responds