The Zedd presale code has just been posted: For a little while you can get great tickets before the public. 
If you don’t acquire your tickets to Zedd’s performance in Philadelphia, PA during this presale you might not be able to get them before they sell out.
Here are all the Zedd show details:
Zedd
Electric Factory
Philadelphia, PA
Thu, Oct 19, 2017 08:00 PM
Onsale to General Public
Start: Fri, 06/23/17 10:00 AM EDT
End: Thu, 10/19/17 08:00 PM EDT
Zedd Fan Presale
Start: Wed, 06/21/17 12:00 PM EDT
End: Thu, 06/22/17 10:00 PM EDT
Local Presale
Start: Thu, 06/22/17 10:00 AM EDT
End: Thu, 06/22/17 10:00 PM EDT
You can use the following presale passwords and information to buy tickets:
Presale password for Zedd’s performance in Philadelphia, PA Oct 19, 2017 - click for more info