Pathetic service from the Call Centre!!!!!

My money went missing from my Nedbank account, i contacted the call centre and spoke to Nokuthula who told me there was a pending transaction but couldn't confirm what was the transaction for,yesterday again i spoke to a consultant who was also unable to assist me and gave the phone to Ruben the Team Leader who couldn't assist and promised to log the call with their IT department and promised to call me back before 15:00 and never called. I believe your call center people are so unprofessional and unhelpful. I need my money to be reversed to my bank account or else i will take further steps. I gave them all the information as i have all the notifications but still they couldn't assist. I want my money reversed to my account not later than today.