Cake DeFi is a platform that allows users to generate cash flow through pooled masternode staking and options lending.
They are currently promoting a referral program whereby new users get 30USD free in DFI if they deposit 50USD. You won't receive the DFI for 180 days but in the interim you'll receive high interest + DFI as a cryptocurrency is performing great (potentially capital gains in the 180 day period).
You can deposit 50USD using AUD via PAY ID (osko) or alternatively you can e.g. transfer LTC, BTC etc. from a different cryptocurrency exchange (e.g. Binance or CoinSpot is very low fees).
Can you sell cryptos unlike other platforms wouldn't want to buy and not be able to sell