I attempted to transfer the Nicehash to my coinbase but didn't realize there was that when I transferred it I withdraw in BCH to a BTC address and consequently the funds never arrived !
Coinbase has access to your funds, but may choose not to recover them because of operational security.
Best to send another ticket to them. I'm not exactly sure what Coinbase's Cross-Chain recovery policy is (that's what this is called!), but it probably requires a decent amount of
BTC before they do anything manually.
Is there a way of recovering the funds either back to nicehash or onto coinbase ?
Without keys to the receiving adresses? No.. You're really dependant on Coinbase willing to credit your funds.
I've seen some rumors that they're, *in the future*, going to automatically credit BCH sent to BTC and vice versa- but i'm not sure if that's true yet.
See -
https://www.reddit.com/r/CoinBase/comments/7ltll8/accidentally_sent_btc_to_bch_wallet_has_anyone/ds3kuue/ &&
https://www.reddit.com/r/CoinBase/comments/7u4f72/case_3441531_please_help_me_recover_the_btc_2500/dthjo2g/We are currently working on a way to credit customers who sent BTC to a Coinbase BCH address and working to credit customers who sent BCH to a Coinbase BTC address by accident. I am not able to give you a time frame as to when you will be credited if you were affected by this, but rest assured we are working on it.
In the future, please only sent BTC to a BTC address, and BCH to a BCH address.
Thank you for your patience with us as we grow with the digital currency community.
Perhaps someone else can shed some light on that.