As they say in Spain... ¡Feliz Año Nuevo!
So after getting her NIE number sorted, Lucy says to the guy behind the counter, "¡Feliz Año Nueve!". To which he just looks very confused and turned away. It wasn't until later that we realised that she mispronounced Nuevo (new) by saying Nueve (nine) - so now wonder the guy looked confused when someone is saying "Happy Nine Year!" to him!
Its amazing to think that by mispronouncing a word by one vowel would cause should confusion!