Worst service ever

I am very frustrated, I have 2 accounts with ABSA my sons and mine, I requested to change the number on my son's profile via telephone and I was told I need to go to the Branch to change number, bear in mind it takes two hours for me to get to the branch, on Tuesday the 27th September I went to the Liberty Mall branch to change the number and I was told that everything is in order, on Wednesday when I tried to do a transaction on the internet banking, I could not because the system detected a sim swap, I called ABSA internet banking and they told me to contact Vodacom my service provider to double check if there is no sim swap done on my number, Vodacom confirmed that there was no sim swap done. I contacted ABSA again and they asked security questions for almost 15 minutes and I passed all of them, the guy that was helping me told me that everything is not in order I will be able to do a transaction, yesterday when I tried to do a transaction I still got the same error saying a sim swap was detected. when I called ABSA internet banking I was told I need to go to the branch again, I am not going back to the branch just because ABSA can not do their Job properly, I asked to be transferred to the supervisor but the call was cut off. I am not sure if ABA understands how much it cost me to keep on calling them to fix the problem and they never do. I need this problem to be fixed because I need to do a payment urgently and there is no way I am taking time off from work again to travel two hours to the branch.