Fed-up with SSDA and MTN.

I have cancelled my MTN account in 2021, and in 2023 MTN handed me over to this crowd for arrears on that account. I requested a detailed statement and almost a year later received a statement for transactions that occurred in 2022, a year after my contract was settled and cancelled. Yet SSDA keeps on harassing me and adding interest and all sorts of fees and threatening me with legal action.