BTC on Bitcoin
Bitcoin charges by the size of the transaction in bytes, not by the amount. bitcoin.org says the fee is not related to the amount of bitcoins being sent, which is why small swaps pay a bigger share.
- A fee set too low can leave your deposit waiting in the mempool. If your wallet lets you choose, pick its normal or fast fee.
- Lightning payments can't reach an on-chain deposit address. Send from an on-chain wallet.
- Wrapped bitcoin on Ethereum or BNB Chain isn't Bitcoin and never reaches the order.