No call back!

I called the credit card department on Tuesday 1 December 2015 for a limit increase. My details were taken and I was told someone will contact me as they do not do the increases directly anymore. When I have had no call by Wednesday afternoon, I called again and my query was escalated to a team leader as I was informed that I should had a call within an hour. It is now Friday 4 December 2015 and no call yet and that department has now gone home for the weekend. The consultant I spoke to today, Nomsa, told me her team leader Cameroon will call me back to take this matter further. Surprise, it is an hour later and NO CALL!!! <br> Before they changed the way to do limit increases I called once a year and within 5min a was helped and as soon as I end the call the new limit increase reflects on my card. Why do we always have to change a system that works???