How Stupid Can You Be ABSA

I went to ABSA Chatsworth on Saturday and updated my Notify Me details. I told the consultant to change the mobile number (8022) to (1495). He fails to update the correct number so what I have happening now is sms's going to (8022) instead of (1495). When I call through, the operator states that I need to go into the branch and she apolgises for the inconvenience. What is the point of online banking, since I now need to go into the branch to correct their mistake. I cannot do any payments, purchases etc and this is really annoying. ABSA has really lost the plot, I am seriously considering changing banks....this is too irritating to handle