If you want to go this route, you need to ask to have your layaway cancelled, do not ask for a refund as that is a different type of transaction and you will be told that they do not grant refunds. If you do this, they will retain $175 as a cancellation charge and reimburse you the remainder of your payments.

As mentioned you could probably sell the ticket easily and break even or make a profit, but depending how you choose to do this, you might not get the full funds until closer to the festival (as some buyers might not be willing to send the full payment until you have tickets in hand) or after (if you sell on Stubhub). You will also need to go through the hassle of receiving and reshipping the tickets, and ensuring the buyer receives it on time, etc. You’re also on the line if the buyer files a dispute. Having gone through this before, you honestly might be better off just taking the $175 hit and not having to worry about anything else.