No reply from limit increase department

I have been struggling for some time now to have my credit limit increased. ABSA has a policy that you have to phone athe credit department and cannot increase your limit at a branch like other banks. I phoned many times, waiting for half an hour at a time. The last time I waited an hour on the phone and finally got helped only to tell me that I have to send an email which is nowhere on any website and could have saved a lot of time and phone money!<br> <br> I emailed them two weeks ago and have still not heard anything back. This is horrible service!