Flew WN on erev pesach BWI to DTW. 98 minute delay on tarmac at BWI. One of my bags did not show up in DTW, it was delivered to me 12:30 am that night (during the seder). That bag contained all of my yom tov clothing, so I had to go buy a new suit and shirts and ties right before yom tov.
I emailed WN on chol hamoed. They responded with instructions to mail them the receipts from my purchases of new clothing and they will consider reimbursing. And they issued me three $100 vouchers, one for each of the passengers on my itinerary.
How optimistic should I be that they'll reimburse me for the new clothes?