Declined once, approved a month later — nothing about their income changed.
Picture a borrower who applies to refinance with a new bank for a lower rate and gets knocked back — their serviceability, tested at their new rate plus the 3% buffer, didn't clear the bar, even though they'd comfortably paid their existing, similar-sized loan for years.
Rather than stopping there, working with a broker surfaces two things: a $12,000 credit card limit they never used but which still counted fully against them, and a lender whose serviceability policy for like-for-like refinances is less punishing than the one that declined them. Closing the unused card and applying with the better-fit lender is enough to clear the test.
Nothing about their actual financial position changed in that month — only which lender they applied to, and what was counted against them.