TERRIBLE CUSTOMER SERVICE NEDBANK FOURWAYS MALL BRANCH

I made cash deposit at Fourways Mall ATM. It was 21st of January. I made R10,000.00 cash deposit in to same ATM three times which means total amount is R 30,000.00. And I have slips of all three deposit. After 4 days later, I got a call from my supplier saying they only received Total R 20,000. And they even show me their statement and they told me that they checked many times to confirm the total amount. And they said I have to go to bank to check what is happening. And I visited Nedbank Fourways mall branch January 27th to know what happened. Actually I had terrible experience early last year at Fourways Nedbank Branch. That is why I normally use ATM to deposit cash. But I had not choice to meeting Nedbank Staff. Because I am the one who are desperate. I met Simeon. I told him the story but he kept saying all three cash deposit transaction went through. It seemed like he was doubting me. I understood him because it was not a case happening open. But he asked me inappropriate questions like ARE YOU DEPOSITING LIKE THIS EVERY DAY?? OR WHAT IS THIS FOR?? I felt uncomfortable to answer this questions. But I tried to calm down because I experienced worse case before here in NEDBANK FOURWAYS MALL BRANCH. Anyways he said he opened a case and said to me he also put my email address in his email so that I can see what he inquired . He said I could see the email same day because he sent that email when I was there. But I haven't received any email or call by now from him. On Thursday, I spoke to the branch manager. But she also seemed like she don't know what customer service means. Even before I finish explaining to her she kept cutting me off. And when I mentioned her staff rude attitude(they hardly greet to customer.) she just said she educate them every day. Before she say something as a manager, what she have to do is I AM SORRY FOR WHAT HAPPEND TO YOU. But she seemed like she don't know how to say sorry. Anyway she said she will let me know the progress. But by now, I didn't hear anything from her as well. R 10,000.00 is not small money and I need to pay my supplier. And no one is telling me what is happening. And I still cannot believe what happened to me. Thanks NEDBANK for giving me great stress instead of great service.