Horrible service- don’t take up a credit card with African bank- they just don’t care

I I’m absolute disbelief that a financial institution can be this ***********. I app**** for a credit card limit increase on the App and submitted all necessary in time and it seemed approved as I got a signed a contract and also approved debi check but the application status has been on “Being reviewed “ for 7 days now. No one calms you to tell you why? Or what is the matter. I call probably 3 times a day and everytime I call it’s the same thing, network issues when they try to call my employer or the number doesn’t go through, I’ve given them 2 direct numbers for HR but still no out come and this is going to be the end of the 2nd week with no outcome. When u call they can’t put you through to that confirmation department or a manager. No one cares nje and I’m sure no one reads my emails