Hello BunnyTail,
PokerStrategy do reserve the right to refuse providing the $50 starting capital, but would only do so with good reason, e.g. if you fail the quiz, fail to pass the ID check, have applied on multiple occasions or for legal reasons (U.S. resident) etc. The vast majority of applications are successful.
Moderators do not have access to your details for your own safety/security and so I cannot tell why exactly you were refused and the customer support team may choose to not provide a detailed reason if it meant giving away some of the security measures that it is required to undertake. I would however suggest contacting customer support again to explain your concerns and to see if they are happy to provide you with more details on their decision.
I hope this reassures you a little, we really are a very friendly community here and would really welcome you with open arms if you chose to stay and are able to sort out the starting capital or deposited a little money yourself.
Best regards,
-Steve