Failure to process my refund of R475.00!!!!

I am disgusted at the appealing service received by Tenacity financial services, specifically customer service. I made an overpayment on on my Ackermans account and I am requesting a refund for the over payment amount which is so difficult. Not sure if they want to keep my money or what is the deal. Spoke to 5 agents and 1 manager who had the worst attitude ever. No one was able to assist me including the manager and I starting to feel unsafe about this company that they are deliberately not assisting me with my refund request to keep the over payment amount. The managers nam3 is Anele and he failed so much at his job. Very *********** and showed no empathy towards me as the irate customer. He even asked me "how many agents are here" like wth?!