How to Buy Polkadot (DOT) with Sponge (OLD) ($SPONGE)
To purchase Polkadot with Sponge (OLD), begin by finding a cryptocurrency exchange that offers the DOT/$SPONGE trading pair. Create an account, confirm your identity, and deposit your $SPONGE into your exchange wallet. Find the DOT/$SPONGE pair on the trading platform and place an order to trade your Sponge (OLD) for Polkadot. If the DOT/$SPONGE pair isn't available, you can first trade Sponge (OLD) for a stablecoin like Tether (USDT) or a fiat currency, then exchange that for Polkadot. Be aware of possible exchange fees, which differ by platform and could impact the overall cost of your transaction.
How to Sell Polkadot (DOT) for Sponge (OLD) ($SPONGE)
To sell Polkadot for Sponge (OLD), first, find a cryptocurrency exchange that supports the DOT/$SPONGE trading pair. Create an account, verify your identity, and deposit your DOT into your exchange wallet. Locate the DOT/$SPONGE pair on the trading platform and place a sell order to exchange your Polkadot for Sponge (OLD). If the DOT/$SPONGE pair is unavailable, you can first sell Polkadot for a stablecoin like Tether (USDT) or a fiat currency, then trade that for Sponge (OLD). Be mindful of potential exchange fees, which vary by platform and can affect the total amount you receive.