I have a solution
Well, I took everyone's advice and called Delta---told them my problem about having been on a waitlist and then was told there no such list anymore. The trick was I called customer relations in Atlanta, and very nicely, very very nicely, asked them for help. They asked me which day I wanted to come back, what routing I wanted, and gave me anything I wanted in either class.
After I picked myself up from the floor and thanked him, I did ask how can he do that---yes, I was thankful, but how? He said the waitlist is no more, and just wanted to clear it out of my itenerary, and the easiest thing was to just take my request and make it happen.
So there you have it---just be nice, call customer service in Atlanta, and beg for help.
Thanks for your postings,
sincerely yours,
Yomama