Did you buy them before the beginning of April last year? If so, you're able to get a refund up to 2 weeks before the performance, although I'm assuming someone from here will take you up on your offer.
Got them at the end of April last year when they released a new batch of tickets through Ticketmaster seems a refund is not possible as far as we can tell.
Considering the show is only a little over a week away we'd like to offer the tickets at 180$ which is under face value. We really want someone to enjoy the show while we snuggle our newborn muggle
Congrats on the baby. You'll probably have better luck if you change the title of the thread to something like "2 Harry Potter Tickets 3/31/19 below face value" or "2 Harry Potter Tickets 3/31/19 $180 total". But definitely clarify if it's $180 per seat ($90 per part) or $180 for both seats ($45 per part per seat). The fact that HP is in two parts makes quoting the price a little confusing sometimes.
Given you're going under face value and the seats were relatively cheap, you'll likely get a buyer if you lead with the price. Good luck :)