Yes, a buyback. Go to the 2015 A&G set, look in the inserts for the buybacks - there might be a specific one for 2012s - and find the right set, go into that set's checklist. Once there, click on the link under "See any inaccuracies?" and give the info there (and include a link to this forum).
-- Dan --
Note: Please see my profile for more info regarding trading (section updated 3/4/2024). I have added a large portion of my inventory to the site, and currently have trading turned on (details are in my profile).