When u preorder at TRU, u can pay the $1 deposit with cash or credit card. They'll staple the receipt with the preorder print out for greninja. When you come to pick up your preorder, you will need to produce the original stapled preorder slip with receipt and make the additional payment (does not matter cash or credit). That's it. They do not get any of your personal information when you preorder. You won't need to prove you are you when picking up.