Bad Customer Experience with Nedbank Call centers

Such a terrible customer service experience with the Nedbank Call Centre. A duplicate EFT payment has been made from my online banking app, the system prompts you to finish your transaction and although I did not accept thr finish icon I went back to check the account number and then proceeded to finish not only then did I realise the first payment went off before I could press finish. I then contacted the call center and in which they told me I need to fill a recall document and pay a fee of r250. I then called up and they said I need to speak to the beneficiary that I have made payment too which is standard Bank VAF. They advised me to speak to my bank. I called Nedbank call center again and this time I had an agent that decided to speak over what I was telling her. I then requested to speak to a manager and she comes back on the call to say there are no managers at their desks and she will get someone to call me back. Up till now I haven't received a call to assist me. Agents name is Siya Tetyama. I am now stuck with an issue where I cannot afford to pay my other accounts which will give me a bad credit score if unpaid . If I do opt for a recall why must I pay r250 for a system that is incorrect where as with FNB you would get an OTP pin to advise you when you can let the funds off. I had the worse experience and I regret leaving FNB this is my first month with Nedbank and it's already a horrific experience with them. Any help or suggestions as I need my funds back today . There is a huge knowledge gap between all the agents in their contact center. I will not pay the fee to get money back that is mine this is ridiculous, and especially when it's a system fault that doesn't navigate properly.