Shocking - all consultants cannot help

I have contacted Standard Bank Home Loans - tried to apply for on website. Tried 3 times and waited for response got a reference . No response- called call centre a week later was told that the application did not capture. Eventually did the application telephonically and was decline. I ask why - Consultant say they can't tell me and that I need to go to ITC. Got the report from ITC and then found out that the reason is that Standard Bank has listed my credit card has written off which is not true. I paid this in full. Got the proof of payment and contacted Standard Bank. I was then given an escalation reference and sent the proof of payment. Two days later called and was told that they do not have it. Resent the email and got a read receipt confirm to say it was read. I the interim I went to the branch as the consultant suggested this. The Northgate branch said they cant help, I must call the call centre again. Called the call centre from the branch - was on the phone for over an hour and they could not help. Eventually asked for a manager - Manger she cant help- put me back to the consultant. I have wasted 2 weeks and my OTP is about to expire - Still sitting with no response .