Given up hope of ever cancelling my line

I have been trying unsuccessfully for months to cancel a landline after moving from Cape Town in August of 2018. It is now ONE Year later and I am still being billed.

Each month I contact the "Online chat" and get told some other story for the line being help up. I am told, I will be refunded but still nothing has happened.

Not to top it off, my maximum debit order of @210 was just charged with a fee of R278.

How is this even possible when i had to up the limit from R100 to R202 because of the 15% Vat increase.

Can anyone help me to cancel this and get some of the money taken from me??