He gets 100 Trust Token per referral, Trust Token is nowhere listed so where u get the 5$ number from?
TWT is listed on the exchange
https://hoo.com/trade/twt-usdtThe token is current trading for way less than 1 USDT for even all the 100 TWTs so i really wonder how OP gains from this. He is basically paying 1 USD to get 100 TWTs worth around $0.7 in total at the current price.
I also wonder if Listing of the token in that exchange was official because Trust wallet is Binance's official wallet, so I would expect it to trade in Binance and Binance DEX first but it's nowhere to be seen there.