Equal employment opportunity commission.
In the USA this is the Equal Employment Opportunity Commission.
You could contact the Equal Employment Opportunity Commission (EEOC) to file a complaint if you believe you have been denied a job based on race, gender, or religious beliefs. The EEOC enforces federal laws that prohibit discrimination in employment.
Contact the government agency that denied you.
Yes, but only through the laws of your faith, not in a secular arena.
It depends. If you were denied for a gun permit, you should contact the agency that issues permits in your state. If you are talking about being denied for a gun purchase, ask the dealer for the information for an appeal.
That is considered illegal
Sadducees
The Saducees denied the afterlife and only regarded the five books of Moses as authoritative.
The earliest recorded atheistic beliefs are from around 1500BC - early Vedic beliefs denied the existence of gods.
If you are in a foreign country, contact your nation's embassy there. If you are at home, contact the relevant government department.
In many democratic nations the religious beliefs or non -beliefs do not disqualify people from holding public office. This is true in the USA and most European nations as well, along with many nations.
I would contact a lawyer over denied social security benefits if you have tried your best to resolve the issues with the company yourself. If it is worth the lawyer fees that is.