@Darin
The three cards you mentioned above show up in your collection on your profile!
Click on the "my collection" tab, click "all cards". Your missing cards should appear greyed. Click on them and re-download.
If they're not there, go to browse models at the bottom left of screen, click models in my collection. The ones with a red tick next to them are in your collection. Just re-download them.
Booster packs are different for everyone to avoid getting duplicates.
Before you buy, click special offers on the browse models page, some are available for one ticket.