When I got my Anniversary Edition, it only showed claim options 1-9. I tried /claim 10 and 11 anyway, but it wouldn't let me claim anything. However, after claiming a few of the 1-9 items, the rest showed up and I was able to claim them.
A side note, before I figured this out, I was able to convince a GM that it wouldn't let me claim my crescent reach port staff, and he gave me on. Then I claimed a few more items, and it showed up, so I ended up getting it for 2 characters on the account.