Hi iam in the US but my apple id's information from mongolia.but i cant see my downloaded things. My security is not problem just want to see my downloaded things.i want to use this things.what should i do

Hi i have some problem with applications.i bought new iphone 5 yesterday.and i downloaded some things.but there are not seen on my dipslay. My billing addres and card is from mongolia but iam still using this card.now iam in US. Informations are from the mongolia. I havent US card. I just want to use my card in here its international card.i want to download everything and wanna see this on my display. What should i do