Sometimes exchanges will give you the forked coins sometime later, often they don't bother. Best to keep control with your own wallet.
Thank you very much, could you tell me witch wallet is better? I think it should support 8 kinds of new coins, am I right?
Any wallet that gives access to your private keys should be fine, that is any other wallet than an exchange wallet. I would personally suggest electrum for desktop, mycelium for mobile devices and lastly blockchain.info wallet if you are not looking to hold the coins for long then blockchain.info should do the work of taking the forked coins.