If an application has been declined, it no longer exists and a password cannot be sent for it.
If your brother is already a member, then he should be aware of the multi-account rules, and have been able to advise you how to apply correctly. Or you could read the relevant pages of the Rules yourself.
We are not responsible for your ignorance of readily available information, provided to assist you.
"May the Grace of Ara go with you, and His Vengeance be wrought upon your enemies."