CasinoCoin (CSC) is making a swap. https://casinocoin.im/swap/
"A token swap consists of moving assets from one blockchain (ledger) to another. In the case of CasinoCoin, we will be merging our current blockchain onto the XRP Ledger granting us access to the XRP ecosystem."
You need to withdraw your coins from Exrates and exchange them!
You can find the CSCL CSC - XRPL CSC exchange instructions here https://eminence.crunch.help/casino-coin/how-to-swap-cscl-csc-for-xrpl-csc-via-xumm
CSC withdrawal on Exrates will be closed on May 25.
If you do not make a withdrawal before May 25, the coins will be lost.