Credit cards know your rights

Can a card issuer consider the fact that I am not a citizen of the United States?

If I am married, can a card issuer turn down my application for a credit card in my own name?

What is the difference between a prepaid card, a credit card, and a debit card?

Can the credit card company sell my account?

Can a card issuer consider whether I receive government assistance when deciding whether to issue a credit card to me?

Can my credit card company change the terms of my account?

Can a card issuer consider my sex or marital status when deciding whether to issue a credit card to me?

Can a card issuer consider my age when deciding whether to issue a credit card to me?

What information are card issuers not allowed to base decisions on when considering a credit card application?

Six months ago the interest rate on my account was increased. I have noticed that the interest rate has been reduced, but is still not going back to my original rate. Can they do that?