How do I get in

Hint 1 of 6:

Have you been to the casino yet?

Hint 2 of 6:

Did you go to the room with the elevator ( behind gambling room )?

Hint 3 of 6:

Did you look in the ashtray in the front center of the room?

Hint 4 of 6:

Did you TAKE CARD?    +1 point

Hint 5 of 6:

Did you READ CARD?