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

To sell RatsBase for Sponge (OLD) in Portugal, first, find a cryptocurrency exchange that supports the RATS/$SPONGE trading pair. Create an account, verify your identity, and deposit your RATS into your exchange wallet. Locate the RATS/$SPONGE pair on the trading platform and place a sell order to exchange your RatsBase for Sponge (OLD). If the RATS/$SPONGE pair is unavailable, you can first sell RatsBase 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.