Asking nicely for a paid up letter

Good day.

I paid up the account and I asked for a paid-up letter and it wasn't provided. When I called your call centre, I was informed the account was closed but my credit report still shows R30.00 invoices every month. I paid last month and I brought this to your attention via email to your two email addresses and this month again, there's R30.00 due on the account.

I just got off the phone with you and I was told the account is closed. Can someone please actually close the account and stop sending me R30.00 invoices?

And can I have a paid-up letter?

Let's do our jobs - I did mine and I paid you right after I lost my job due to what happened in 2020. I expect you to do the same and close the account.