But when she contracted a debilitating and life-threatening brain tumour, BNZ's insurance proved worthless. Denney was diagnosed with a pituitary tumour in 2020, and underwent brain surgery, several years after symptoms emerged, including rapid weight gain, muscle loss, brain fog, fatigue, depression and severe headaches. (Supplied)But despite her neurosurgeon saying Denney fitted the criteria to succeed in her A$49,000 claim, BNZ Life Insurance declined the claim, after taking six months to come to a decision. But Partners Life, which bought BNZ Life Insurance after her claim was decided has promised to take a fresh look at her case. Her cluster of debilitating symptoms resulting from the pituitary tumour is called Cushing's Disease.