Carolyn, I have been flying Southwest for at least 10 years or more, they are very reliable, however greedy. I had a similar issue with WN a couple sumers ago. I had booked a flight to FL from PVD using a 10.50 credit that was about to expire. My dad passes away and I had to cancel the flight. I was told the whole ticket would expire on the date that the 10.50 was to expire. In my opinion they stole $200 from me - I'll never forget that.
I hope they made the right move with you and your ticket.
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