Hi, I recently made a Bitcoin payment with cash instead of core. Is there a way to retrieve the funds? Thanks in advance for any help.
Please contact the receiving party and let them know.
The keys are the same on each chain (BCH and BTC). Whoever controls/owns the BTC private key (for the BTC public address you've sent to) may be able to recover the BCH by importing, or sweeping, the BTC private key into a wallet which supports BCH.
If you sent the coins to a merchant, or through a 3rd party invoice, they may not be willing to risk the time or security to recover the coins. If you sent the coins to someone using a custodial wallet the same will probably apply.