Under “Certified Administrative Procedures Legal Specialist Act”, it is forbidden that persons who are not administrative scrivener make documents to submit to government and public offices to make money.
Actually, administrative scrivener can be read as immigration lawyer.
So, to make money as a business, the person who does not have an immigration lawyer license can’t make documents to submit to immigration office by your request.
You should not use service from them.
One way to check if they are true immigration lawyer or not is telling them to show “pink card” to you.
Please be careful.