Standard Bank running in circles

My wife and I have contacted Standard Bank via email and visited the branch to try to change our Home Loan account number. The telephonic support refuse to do it via email and when we visited the branch they told us only the Home Loans division can assist. When you call them the Home Loans they advise you to visit the branch. So we decided to pay the money every month. However, Standard Bank is still a making EDO attempts on the account. It's either they don't know how to provide the switch or are just too lazy to get the job done. It doesn't get more pathetic than this.