My son need to pay a fine to spanish courts, we dont know who to pay euros to, the bank needs a…

My son need to pay a fine to spanish courts, we dont know who to pay euros to, the bank needs a name, all letters have been in spanish , and it takes time to have them translated, but still no clue to who we send payment. the court is in Boltana HUESCA.
we also dont know if there is a time scale