In the event of a dispute the consumer may resort to an alternative resolution of consumer disputes:

CNIACC – National Centre of information and arbitration of consumer Disputes
Faculdade de Direito da Universidade Nova de Lisboa Campus de Campolide 1099-032 Lisbon
Phone: (+351) 213 847 484 (Call to National Fixed Network) -15.00 h to 17.00 h of 91 922 55 40 (Call to National Mobile Network)
Email: cniacc@unl.pt
Web: http://www.arbitragemdeconsumo.org/ https://www.facebook.com/cniacc

More information on the consumer Portal www.consumidor.pt.