Accidentally sent Bitcoin Cash to Bitcoin address held by a third party I made an exchange on Changelly to exchange my Bitcoins to Bitcoin Cash. These Bitcoin Cash would later be sent to my address. Unfortunately, I did not check twice and had the Bitcoin Cash sent to my Bitcoin address and not Bitcoin Cash address.

Is there a way for me to reclaim these Bitcoin Cash? They are on a Bitcoin Cash address, just not mine. I checked the address and it only holds my Bitcoin Cash, which means it probably does not exist as an address. Is there a way for me to custom create the address and claim them or how do I get them back?

This is the process of how it went


As BTC in Blockchain.info
Transferred to Bitcoin Cash via Changelly
Transferring done, Bitcoin Cash supposed to be sent to my Bitcoin Cash address, to my Bitcoin.com Wallet but after accidentally having written my Bitcoin address and NOT my Bitcoin Cash address, the Bitcoin Cash is now with that address. I can see the cash at the other address but don't know how to get it back.


Help would be much appreciated. Thanks!
You'll have to negotiate with your service provider whether they can help you. 

Whoever holds the private keys for your Bitcoin wallet should be theoretically able to generate a transaction that sends the BCH from the Bitcoin address to wherever you wanted them to go.

In practice this may be difficult or infeasible: To keep large quantities of Bitcoin secure, the private keys are often stored in hardware devices or otherwise hard to access. The service provider will likely at least need to manually intervene to help you. 

If the Bitcoin address was SegWit (which I wouldn't expect in this case), it might be even more difficult to recover, as you'd need the help of a miner, additionally.

It is unfortunate, that the Bitcoin Cash developers used the same address format as Bitcoin, even after this problem was well-known and in the media recently with Litecoin switching to a new unique P2SH address format for this very reason. However, I've read that they are working on a new unique address format, so at least this should stop happening in the future.