Your sites is very simple interface, many users will easily to understand how your casino works and how to play it. I agree with @nakamura12 you can buy copper membership here
https://bitcointalk.org/index.php?action=credit;promote .

I have complete these task, but why it not completed and my balance is still 0? I already refresh/reload my pages too.
Anyway do you have any thought to add other top coins for your casino? such as Bitcoin or Ethereum.
Yeah Buying copper membership will make Him or the site more legit(though this is not assurance of being legal,but at least He can post images)
not sure if you are part of the gambling site's team but your first thread here has already been deleted for the reason that your gambling site doesn't accept BTC. I suggest moving it to its proper board to avoid your thread being deleted just like what ryzaadit suggested.
My thread got removed?
Yeah.
Probably due your website using an altcoin option (nano) for the deposit and withdrawl activity, your announcement thread should be on Announcements (Altcoins) / Token (Altcoin) child board.
If you want to make a thread on the gambling board, you should have "bitcoin" as the transaction for your website.
I am the sole developer. That was my affiliate who posted here. Another user seemed upset that he was using an affiliate link. If moderators will provide guidance I am happy to comply with the rules of the forum. As I am not using an affiliate link, I see no issue here. Thanks for your concern.
Then Good luck to your site and business.