Problem solved automagically. Just logged in this morning and opened the App Store app and at the top of the Purchases "tab" it reads, "You qualify for 3 apps." Those apps are Pages, Numbers, and Keynote. I don't think that was there yesterday after installing Mavericks but I do think that this was just a little slow in appearing. Keynote, for example, is now listed as "FREE" rather than for $19.99 as it was yesterday when searching on it in the App Store. I did nothing special, just went to the App Store after a good night's sleep. So anyone that had problems on launch day and legitimately bought a new Apple device after October 1st as I did should now be OK. I did not have to go anywhere or apply for anything. Thanks so much for your prompt help and I'm glad it turned out to be unnecessary.