Sent BUSD to the wallet ETH, although bsc network is not provided, it was an erroneous translation
How to get your funds back? Is it possible to request a seed phrase or a key from a wallet associated with an account on coinlist?
Not only on Coinlist. Generally, when you make your deposit to an inaccurate address or inaccurate chain, you lose your coins.
Exchanges emphasize it in FAQs, or page for Deposits & Withdrawals. They even will give you reminder when you get your receiving address or try to submit your withdrawal.
Coinlist's FAQsYou can open a support ticket and wait for Coinlist's responses but don't hope high.