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.
See their article
Sending Funds to an Incorrect Address or ChainPlease do not send funds in to CoinList via any other chain that is not supported, such as BEP20 or TRC20. If you do this you risk losing your funds.
Can my funds be recovered if I send tokens from an unsupported network?
We are unable to perform a recovery of funds sent via the incorrect network.