POOR service no integrity

I was mislead into changing my account over to Standard Bank by Riana a private banker at Keywest branch she told me if I changed my account over to Std bank because my husband banks with them we will get a better home loan interest rate, she knew at that time that we already had an approved bond. After changing over I was told because we already had an existing approved bond there is nothing that can be done. As well as she would change all my debit orders which she did not do! I complained to her teamleader and got no where. I went to see the branch manager who said she will see if she cant get better interest on something else, she phoned back saying sorry there is nothing she can do. I am now buying a new car and thought this could be the time that Standard bank could make up for all my inconvenience and their very bad service so I called the branch manager again today telling her I want to apply for vehicle finance and I want a good interest rate, she said she would have her lady call me to do the application. I haven't received the call yet after I explained to her that the car is ready for delivery only waiting on the bank. I tried getting through to Standard bank Key