Bad/ slow customer service

I experienced an issue while depositing money at the Nedbank ATM at Southgate Mall. I entered the account number, reference, and inserted the cash, but the ATM went blank, displayed an error message, and then returned to the home page without processing the deposit. Unfortunately, I didn't receive my money back. Despite my efforts to resolve this with Nedbank, I've been met with incompetence and frustration. A service agent named Azelle kept me waiting for over 15 minutes before canceling the chat. This incident is causing significant inconvenience in my life. My reference number is ***. I hope you will assist me in resolving this matter promptly.