This question already has an answer here:
I incorrectly sent some ETC from my bter account to an ETH address on Poloniex.
After waiting for a couple of months on a response they told me: "I'm sorry, your ETH deposit address is blockchain specific so ETC can not be recovered from it."
Is there still anything I can do, or are the coins really lost forever?
What is a blockchain specific deposit address anyways?
Thanks for the responses. I mentioned the private key, but they specifically replied with the fact that my ETH address is "blockchain specific". What does that mean?
I keep getting a flag that the question has been asked before, but I see no mention of contracts in the one I'm referred to. How is it a duplicate question then?