I’ve went through a few agents here and there and I notice some projects offer cashback. My understanding is that the cash is totally yours and you can do what you want with it - though it is most definitely smarter to use it to pay off the mortgage or put in something like ASB if you can handle the monthly payments. Or am I totally wrong about this?
I don’t think you can pay mortgage like that, but other than ASB/investment, i’ve also heard people use that money to renovate or buy furniture for it.