Ineffective call centre customer service

My experience with Standard Bank Call centres and particularly the home loan department has been shocking. I submitted a request to apply for an additional value on my homeloan. Firstly after 3 phone calls all I was told is that my application is in progress. No feedback on how far or when I will have an answer only to then find out they never recieved my application once I requested my call to be escalated. Then after that was done I have made approximately 5 more calls with no sucess to where it is. When I ask for it to be escalated it is just ignored. No one phones back and when I phone again I normally am 50% helped, either their system is down or they cannot transfer me and the manager walks away saying they could not get hold of me. The last time Delmyn Perreira were supposed to phone me back. I am still waiting 2 days later. Their call centre to log a call's turn around time is 3 or 4 days. How can you deal with customers with such a service. The verifications system they use has the wrong info on me and 50% of the time I fail the verifications questions. I am pretty sure I know my own info. The time you spend on the phone is absolutely crazy and not sustainable. I don't know how standard bank maintains to have customers with this level of customer service.