Nedbank Call Center - Holding on for 18 minutes no service

I am a Nedbank client that's currently under debt review with Debt Rescue. I call the call center with regards to my credit card statement as I am busy planning and keep track of my payments. No one at the Nedbank call center can help me, I was transferred from pillar to post just to be transferred and left on the line for 18minutes. How you a bank give you this kind of service? I am trying to solve my financial issues out and you guys are not bothered at all. Instead of informing the client let me find someone to help you and let them call you back you will rather let a client hold on with no assistance, this is terrible service you guys need to do better. Can I please request call from you Debt Review office with regards to my accounts URGENTLY!!!