@catalinansa1 Sorry to see you’re experiencing difficulties with payment from Bilingual Brothers Notary.
Of note, it’s always a wise & strategic move to vet your new potential clients prior to providing your professional services.
I’ve performed a cursory Search via the GOLDMINE found within the Notary Cafe Database for enlightening threads on this business entity. When you research these threads (see the direct url links below), you may glean some germane data about how to proceed & collect the funds due to you.
You can locate the ever-elusive/nearly invisible Magnifying Glass to perform a Search of the database in the image below:
