So as I understand, you sent bitcoins to some address that was somewhere meant to be used as a Bitcoin Cash address. Now the addresses are the same thing in Bitcoin and Bitcoin Cash, but their balances can differ on the two networks. Now those coins were sent to some address in an online wallet that is called Bleutrade and they don't appear since Bleutrade only shows the Bitcoin Cash balance of that address and not it's Bitcoin balance, correct?
I don't really know how Bittrex knows this tho, since no one can really know is an address intended to be use as BCC or BTC address just by looking at them.
They are definitely wrong when they call it a BCC address, as there is no such thing. Addresses are the same thing in both, they can just have different balances on them.
What you need to do, if this is the case, is to go to that Bleutrade wallet where you sent those coins, even if they don't show up, and find a way to export the private keys for that address. Navigate around, I never used that wallet personally, so I can't be more precise.
They're lying to you...
You can easily import a bitcoin private key/bitcoin cash private key into another wallet. BCC is a soft fork of BTC, therefore, BCC private keys have the exact same format as BTC private keys.
They probably don't want to help you as it takes them time for something they consider to be your mistake (even though it is probably recommended tha they set the bcc and btc deposit addresses to the same unless a user requests a different one for eac wallet to resolve this issue). However, good luck in getting your coins back!
I guess it is just a slip of the tongue here and that you meant to say a
hard fork.
