Expansion packs appear on the EA app, but are missing from the launcher itself.

Kpopgurl02​  This typically means there's something wrong with the codes: they're deactivated somehow, so the launcher doesn't load them even though the content is installed.  You'll need to contact EA support again and specifically ask about the status of the codes for your missing packs: whether they're active and valid, or there's some specific issue.  It may also help to have proof of purchase on hand, for example an e-receipt or a photo of a disc with its case and product code showing.