The Glassjaw pre-sale password has just been added: During this special presale you have got an opportunity to get show tickets before they go on sale. presale passcode for Glassjaw tickets in Charlotte - NC (The Underground) You don't want to miss Glassjaw's show in Charlotte do you? Tickets will sell fast when they go on sale: during the presale you can buy your tickets before they are all gone.
Here are the Glassjaw show details:

Glassjaw
The Underground
Charlotte, NC
Sat, Jul 28, 2018 07:30 PM

Onsale to General Public
Start: Fri, 04/06/18 10:00 AM EDT

Citi® Cardmember Presale
Start: Thu, 04/05/18 10:00 AM EDT
End: Thu, 04/05/18 10:00 PM EDT

Live Nation Mobile App Presale
Start: Thu, 04/05/18 10:00 AM EDT
End: Thu, 04/05/18 10:00 PM EDT

Live Nation Presale
Start: Thu, 04/05/18 10:00 AM EDT
End: Thu, 04/05/18 10:00 PM EDT

Citi® Cardmember Preferred Tickets
Start: Sun, 04/29/18 10:00 AM EDT
End: Thu, 06/28/18 10:00 PM EDT

You can use the following presale passwords and information to get tickets:

Our Presale Passwords are for WiseGuys Members Only -

Join right now and you'll instantly unlock the presale passwords you need to buy your tickets before the general public to this and hundreds of other events

Here is a tip: When a presale code is not found in ticketmaster or livenation - verify that the presale is still valid: you could be looking at some out-dated information, secondly remember that there might be more than one presale - when there are multiple boxes where presale passwords can be plugged in you might need to try a couple of combinations to find the right one.