Não resisti a deixar um comentário na página do Facebook da Brussels Airlines: "Just receive your email with the Summer promotions.For your information, Porto is NOT the river of Vila Nova de Gaia. Porto is the city on the other side of the river (Vila Nova de Gaia on one side; Porto on the other side). The river is called Douro.".
Tive resposta:"Hi Vera, sorry for the confusion. We just mean that you can visit this river while visiting Porto. /Claudia"
E voltei a responder:"Brussels Airlines well... what is written it is not even close of what you meant.... Anyway, thank you for your reply and maybe you can correct the text in future emails."