FNB Credit Card Limit Increase not reflecting after a week

I recently paid off my credit card with FNB and decreased my credit limit. However, a week ago I needed to increase my credit limit and I did this on the app with an approved agreement signed and sent. A week down the line, the credit card limit has still not reflected for use on my account with the subsequent inconvenience this has caused and continues to cause me.

Surely, this is not just very inconveniencing but very inefficient if one has to wait for that long especially for a bank that prides itself in giving customers the power to manage their finances easily on the App.

Can someone promptly please assist with this as no one on secure chat is willing to assist.