They don't need any "money" all they do in the lending program is taking a certain amount of Hextra coins and giving you back a certain amount of hextracoins later which is smaller when the price increases that's why they pull it up
They wouldnt need money, if we were on an external. But since its internal, the cashout is from their exchange.
smartcrypto is correct Hextra has premined HXTs and they pay loans with them. No need for bitcoin. They keep the value of HXT artificially high so they don´t have to pay too many HXT to lenders...
But when you withdraw BTC, where does it come from? It comes from Hextra's wallet.
Since you sell your HXT to other investors, not HXT, the BTC you received is the BTC deposited by other new investors.
The point is, its money in their hands, that they dont want to give to you. If they put us on an external, we can just sell to others, and they wont have to give us money out of their pockets.