So I haven't played in a while, so I hope this isn't something that's already been addressed. But I seem to keep getting the notification for completing an achievement that I'm pretty certain I've already completed. I even went to look at my user dashboard, and was given 6 loyalty boxes and a 1 week gold account medal (for the 7 years I've played). The thing is, I KNOW I've already used a loyalty box before this, so it's not like it's making up for lost time. I didn't realize it granted me multiple boxes until I had already used one (thinking it was just for hitting the 7 year mark), but I just wanted to let someone know about this or see if anyone else is having the same issue.
If you haven't already, please file a ticket. :)