I was wondering what if someone accidentally sends Bitcoin Cash to a Bitcoin address?
I saw a post in twitter from one of the staff I think of Bittrex that they will not do anything if anyone accidentally sent BTC to a BCC wallet and vise versa. So better be careful in sending those funds and double check the address if address is correct. Don't even bother to open a ticket according to the post. Its irreversible for now. I am not sure with other exchange sites.
That's right, bittrex is not going to investigate the BCH that wrongly sent to bitcoin address, but, they may demand some bitcoin if you really want them to do the investigation, so there's possibility to recover your BCH back but just, you need to spend some of money.