GET Attribute from XML

@Israel_Silva
Kindly note: the provided XML was incomplete we did repair for some prototyping

CNPJ is an element

we dont know the details, what was done

as discussed: it was checked and setup the default Namespace:
grafik

And when fetching the CNPJ elements the namespace is used:
grafik

So we would recommend to incorporate the namespace handling as well in your modelling