Worse Service

This has got to be the worst bank ever with their long time frames. Send through for a credit limit increase via the app, approved, get the debi-check mandate approve that, then the wait starts. It has been over 2 and a half weeks for any feedback as to why the increase limit does not reflect. I get told via secure chat that I need to submit proof of income, of which I do 5 days ago, when I follow up this morning, I get told that no I need to send the proof again. I then provide the agent with the ref number only to be informed that they have escalated my query and I have to wait another 3 to 5 days for feedback. How does this help me? Each and every time you have to wait for feedback over 5 days...I don't experience with my other banks that I bank with except with FNB.