You don't need to download anything. All the content is already present in your client; some of it is simpply locked and therefore cannot be used (yet). When you purchased the quad-pack certain content un-locks got applied to the account you were logged in with at that time.
You can check the in-game Store to see what was unlocked. Whatever expansion doesn't show up in the Store anymore, you have access to.
BTW, a simple question without the drama would have achieved the same answer, maybe even a few more details...
German, female, migrated from CodeMasters in 2011, Premium member, slow-leveller, pure PvEer and opposed to Forced Emotes - wherever I fit into the statistic, it's not in its middle.