Reverse R983,25 in my account, i have canceled a contract i had with you on May 2023.

Hi, I have canceled a contract i had with you on May 2023. On the 4th March 2025 you debited R983,25 in my account. Last week Friday i had spoken Thato Lemao he was my account manager on 2023 he promised me that he will write an email to you guys so you will reverse my money.I'm trying to call him but his phone is off since Tuesday. When i call your land line *** they don't want to assist me, they told me to wait for Thato. How long should i have to wait for Thato and Altron what what to reverse my money?