Adventure packs available

Hello I am a returning DDO player and I was curious how you see what premium adventure packs and account based store bought stuff that I currently have. I know I at least have the drow unlocked but it still shows up in the ddo store as being able to purchase the drow. I was curious if there is anyway to see what i've already bought for my account so I don't accidently buy something again.

You can't see what you previously bought. But you can't buy something you already own. If, for exemple, you want to buy Vale of Twilight, but you already have it, you won't find it in the Store.

For the drow, I bet you unlocked it on your server with favor (getting to 400 favor points is pretty easy). You can still buy it, as it is still lock on other servers.