Old Mutual giving me a runaround

At the beginning of the month (March 2024) I decided to withdraw from my Old Mutual tax free account and subsequently close it once and for all at Krugersdorp office. Everything was done and I was told that the process is going to take +-15 days. About a week later Ithey sent me a form to fill and submit through the email or take it to the branch, which I took back to Krugersdorp office for convenience. On the 14/03/2024, they again requested me to forward the documents with my banking details through email or WhatsApp. I did that through WhatsApp the very same day. But guess what, to my surprise this morning I received another message, requesting me to send my banking details again before I can get paid which is ridiculous but I just did. Lastly I want them to close my policy once and for all I've been trying to close it for a while now but they keep debiting my account very month...can I please get help...the sooner the better