I've been trading at c-cex for long now, no complaint whatsoever. Of course wallets have issues on most exchanges and people are informed in chat of the same, so welcome to the crypto-world kiddo !! Every exchange closes wallets when there is a problem and it is GOOD on their part to inform the users of the same !!

Also instant support at c-cex is a big win win and have had my issues resolved in a max of 2-3 hrs !! So don't judge a book by chinese whisper reviews, try to read it yourself