I don't work on Argentine suits all that much, hence my low CR, but there's an entry in West's dictionary that reads:

"bono del Colegio Público de Abogados (Arg) contribution to the Bar Association [contribution must be made to the bar every time a lawsuit is filed or answered]"

Presumably, that's what this means, i.e., the contribution has been made already and the proof of this can already be found in the court records of this case.

If this possibility can be confirmed, you might consider translating your phrase as as "Bar Association contribution has been made, see case records."