How can u have a shop

You Can Only Have A GFX Shop by having more than 50 posts and pass a test for if you worthy to have a deck shop you'll show one of your signatures and Staff members will rate you must to have at least 7/10 or 6/10 then you can have your own GFX Shop also post here if you want to have a GFX Shop so you must to have more than 50 posts and a signature rate more than 6/10. Then when you get good voteings one of staff members will make a GFX Shop for you and you can insert your own rules. That goes to all (Slifer/Ra/Obelisk) members.

Edit:
Signature/Avatar price CANNOT exceed 100 credits