I'm thinking of buying the "Dungeons & Dragons Online™: Shadowfell Conspiracy™ Collector's Edition - Digital Download" pack, and "Dungeons & Dragons Online™: Menace of the Underdark™ Base Edition - Digital Download".
Thing is, I already have Shadar-kai bought, and a total of 9 character slots (I'm not sure the max slots you can have).
I think with some of the in-game bundles, if you have one part already purchased, you can't buy the bundle. Does the same work with these expansions, paid with cash instead of points?