Well I know that post decimal bank notes can be changed in branch, are pre decimal notes changeable?
Hey there, sorry for the slow reply! You can exchange current and previous generation notes in any of our BNZ branches, but unfortunately anything older - such as pre decimal notes - have to go through the Reserve Bank
…and, depending on their condition, may possibly be worth more than their face value. Crisp and clean… most likely. And the higher the denomination, most definitely… if they are crisp and clean.