How do I get past the guard

Hint 1 of 4:

Is Lydia (from the Disco) with you ?

Hint 2 of 4:

Did you try to buy a DRAG ?

Hint 3 of 4:

You can only enter with an appointment made by phone.

Hint 4 of 4:

Call the number Lydia gave you. This number changes for each game.