Thanks. I used Delta. Southwest has no value to me. It doesn't go where I do. I have never flown it ever. I know I am not far from BWI and PHL where I believe they exist, but I hardly ever fly domestic. Delta is crummy but at least I can buy gift cards which work(so far)You probably figured this out but TPG has a good posting on what triggers the credit.
One of many exciting things about a new year, from a points and miles perspective, is that various credit card fee credits reset, so you can use them anew. The Platinum Card® from American Express, for example, offers $200 toward incidental airline fees — defined as purchases such as checked...thepointsguy.com
It looks like your best bet is with southwest. (although American and Delta should work too (some DP's show not the full amount reimbursed with these two)