Pending notice period for money transfer

I placed a notice online for an amount to be paid into my credit card account. The due date was today and the money has been taken out of my investment account but wasn't paid into my credit card account. I went into the centurion absa branch to get it resolved and after 45 minutes in a cue where the staff's reception is colder than the aircon, the response to my problem was the transfer is "pending" and there is nothing they can do till Monday....

I don't understand how a bank can take my money and hold it from me....This is not a loan, its my money. I gave the due notice period and did everything I was supposed to and here I sit, unable to access my money.