ABSA does not allow me access to my own money

When I transferred money to pay my credit card it was transferred into my sons account instead of the credit card account. When I noticed that a mistake had been made and the credit card had not been paid, I tried to reverse the money. ABSA would not allow me to reverse the money stating that I did not have authorization to do so, when my child is a minor and his account is linked with my accounts on my banking site!!! When I called the ABSA help online they informed me that I needed to go into the bank to activate this as I was not able to do so online. I went into the bank and waited for two hours. The lady informed me that I needed to stand in a different queue to have the money transferred and when it was my turn they informed me that it could not be done because I need to bring proof of address for my son and FICA him. How can one FICA someone who is underage. Absa has been unhelpful and has wasted my time and I will be charged interest as my credit card is still not paid and I can't get the money to pay it because the account is not activated, when I should have full access and power of attorney.