From your "Freeze" page, click the Frost of your choice from the sale list under "Marketplace" tab.
Check the details and click "Buy Now" button at the bottom.
Double check the order with summarized information then "Checkout"
To melt the Frost you've just purchased, you will want to click "Settings" in Frost detail page.
Click the "Melt my Frost" button near the bottom of the screen, then confirm at the pop-up page.
The melted Frost can be found under "Portfolio" tab under "Earn" page.
If you have any questions, please click here for further assistance.