Missing most expansion packs

marianna1016​  It is very possible that the packs weren't properly restored or transferred, whatever was necessary in order to make them work.  What you could ask is that your current versions of the packs be removed first, then new copies added to your account.  Make sure every copy of each affected pack is removed, in case another support rep simply added a second or third copy to try to fix the issue.

Normally I'd say you'd need the discs or at least the codes to prove ownership.  But your account probably has some kind of record of the previous packs since support has already tried to help with this.

As for getting the live chat option again, try this link:

https://help.ea.com/en/help-contact-us/?product=the-sims-3&topic=missing-game&category=manage-my-account&subcategory=find-missing-game

Make sure you're signed into an EA site (this one is fine) before clicking the link and that the location in the lower-right corner of the browser window is set to U.S. or U.K.

Alternately, try using the help site without being signed in.  Some categories of issue allow you to proceed without an active login, and many of those offer the live chat option.