What does the subpoena which i have received  mean?

It is a part of the story of our escape game In the Clutches of Secret Police. You will be locked inside a flat of a state security officer, where you will have to complete a secret mission and escape.  

What advantages does the subpoena give me?

If you come to our game In the Clutches of Secret Police with the subpoena up until the given date, you will receive a 20% discount for the whole group in addition to the special effect just for you.

Why should I hand out the subpoena, besides making them happy?

If someone arrives to play the game based on the subpoena given by you, you will receive our own Brainteaselava t-shirt for free.