CLOSE MY MTN ACCOUNT AND STOP DEDUCTING ANOTHER DEBIT ORDER

I'm trying to CLOSE my MTN account and STOP my Debit order. I sent an email to <***> on 5 November 2023, requesting them to close my account and stop my debit order, to which I received an automated reply with Reference number: 8ce9d6e3-7753-4f86-8f29-e1a84498ff69. I sent a follow up email, requesting MTN to close my account and stop my debit order on 9 January 2024, to which I received another automated reply with Reference number: 60a43b5b-30a3-4d7d-86f3-2d24b982f363. Since then 4 debit order have been deducted from my account: 1 December 2023 (R74), 30 December 2023 (R74), 8 January 2024 (R74) and again on 31 January 2024 (R159.50). PLEASE, I relocated 5 years ago and no longer live in South Africa. I desperately want to CLOSE my MTN account and have no more debit orders deducted from my account. My Billing account number is: BA*** MTN Mobile number: *** to which I no longer have access to. My current contact number: +***I do not want to receive another automated reply, I just want my request processed and be done with MTN.