You could probably do this for cheaper using https://deeperchain-ethereum-swap.deeper.network/swap
Load up metamask, switch to ETH network. Then reload the above swap page. Make sure to select ETH chain to Deeper chain. Then you enter in your Deeper device wallet address (get it from wallet page) and swap the tokens from ETH to Deeper chain. You will receive the tokens in your device's wallet.
Then you go back to swap page. Open metamask and switch over to the BSC network. Then reload the swap page. Make sure to select Deeper chain to BSC network. Enter your BSC address. Send the tokens from your Deeper device to the swapper. You will receive DPR on the BSC chain.
It may not ask for an address, because it uses the account currently selected on the network selected in metamask.
This will probably cut out an insane amount of transaction and exchange fees. Send the ETH once, pay one $10 fee instead of two.