no answer on limit increase more than 3 weeks!

I have my husband's credit card linked to my account and he wanted to do a limit increase via online banking which allowed me to do on behalf of him. The application was done over 3 weeks ago said that its \provisionally approved\" but to date no outcome. He called the call centre several times mostly it says hold on for a few minutes noboday takes the call or if they take the call they hang up. How long will it take to get an outcome? I am a customer of Absa for years and have always been telling my family friends how happy i am with the service of Absa, my husband always disagrees with me on that. Now i know the reason why. He has this credit card for years but not once the limit been increased at all."