How to Sell XDAG (XDAG) for Sponge (OLD) ($SPONGE) in Portugal

To sell XDAG for Sponge (OLD) in Portugal, first, find a cryptocurrency exchange that supports the XDAG/$SPONGE trading pair. Create an account, verify your identity, and deposit your XDAG into your exchange wallet. Locate the XDAG/$SPONGE pair on the trading platform and place a sell order to exchange your XDAG for Sponge (OLD). If the XDAG/$SPONGE pair is unavailable, you can first sell XDAG for a stablecoin like Tether (USDT) or a fiat currency such as the Euro, then trade that for Sponge (OLD). Be mindful of potential exchange fees, which vary by platform and can affect the total amount you receive.