ALR (Alternative Litigation Resolution)
In the case of disputes between seller and buyer, the buyer can appeal to an ALR entity (Alternative Litigation Resolution). These entities are authorized by law to mediate consumer disputes. You can consult the legal entities here, as prescribed by the n.º144/2015 law. click here.
ODR (Online Dispute Resolution)
The consumer can also appeal to the European Online Dispute Resolution Platform, following this link.