No feedback on queries / Phone calls unanswered !!!

The account manager dealing with our business accounts left the Standard Bank Parow branch about 18 months ago and we never received notification or an email to let us know who our new account manager is. When we needed to deal with them , we were assisted by a temporary manager that has since left as well :-( When I needed information on some of our home loans , I had to find someone that can assist and it is now 20 days later and no feedback. When you call the bank's number no-one answer the calls. The call centre takes ages to answer phone calls and just transfer you to the branch and yet again no answer ! It is no use to ask for a contact name or number at the branch because they do not have those details at the call centre or they are not allowed to give it to the public ! I am really disappointed in Standard Bank's customer service !