Unfortunately I am not with nib so I can't access the deal, but if you are already with them and a medical practitioner (not chiropractor), nurse, midwife or paramedic registered with AHPRA then you get $250 to spend in their nib rewards store!!
Apply before June 30
Ring 13 14 63 with your AHPRA number ready.
Hope it helps someone.
Wonder if this works for NIB subsidaries? eg GU health …