Scenario: You have 14 limited edition blings and nothing is showing up for the following achievements:
First, there is a mis-conception that all previous Limited Edition blings before 03/29/12 will not count, this is WRONG, they ALL COUNT.
Second and most importantly, there is another mis-conception that "full limited edition bling SETS" count as one point for the above mentioned requirements. This is WRONG. I have 14 limited edition blings (including 2 full sets .. mardigras and valentines, but SETS dont matter) so I should have the first two achievements done and the total Limited Edition Bling points would be 14.
After doing some research, I found some people that had the first 3 already completed ( 1, 10, 20 ) which would theoretically be impossible to do if the above mis-conceptions were true.
Knowing this, I bought ONE of the THREE Limited Edition blings that were released today. THIS ACTIVATED EVERYTHING! All of a sudden, I had the Lim-Initiate and Limited Hobbiest show up as achievements. YES.
The FIX: Buy ONE or more of the Limited Edition blings that are available right now - or ones in the future. Once you do so, all of your other individual Limited Edition blings will count and you will get your achievements.
I hope this helps someone out, the support lounge was clueless and gave me mis-information so I decided to do some homework.
Later