Disgusting customer service

I tried to get assistance from Tymebank on my wife's cell phone for a debit order to be reversed. I had spent over R100 on airtime just holding on the line to get assistance, eventuallyafter about 5 minutes of holding a consultant told me i had failed the security questions which i did not, the call kept cutting because I was running out of airtime the consultant refused to transfer me to their superior. How can this be a bank for the people? They even refuse to call me back.