Absa credit Card is a disgrace!!!

About a month ago I app**** for an increase in my credir card limit.I app**** for an increase of R50000,the lady who helped me by that time told me I only quilufy for R25000,then I told her I needed for I need R50000.Then she said she will do an appliacation for me for R50000.After she did the application I told her they must first contanct me before increasing my limit.So a few days after have passed when nobody phoned me back!!I decided to check my credit card balance on my internet banking when I saw that they have increased my limit with R30000 when I specifically told them to phone before they increase my limit.I phoned them and asked them why hasnt anybody phoned me regarding this increase nobody could awnswer my question.I immediately told them to take back the R30000 as it wasnt enough for me!A few weeks have passed when I phoned them back and told they can increase my credit limit to R30000.The lady on the phone told me that they cannot increase it to R30000 but only R27500.When I asked them how is it possible when only a few weeks proir to that they have increased it to R30000.As an Absa client this is disgraceful.Please do something about it!!!