Yes, it was backlogged and just sent out now... hadn't realized all that stuff was still in queue or I would have cleared it first.
Heh - yeah nice little wake up shock 
In my case it was 2x account change and 1x manual payout ... sounding exactly like an account hack
I was like OMFGBBQ! ... and doubly so coz I couldn't find the actual email messages ... they were back a few days in my inbox.
Was a major sigh of relief to finally work out it was all indeed just 3 old messages for changes I did a while ago
Yeah whew. I just got hacked on Nov. 28 so this was definitely a red flag and I flipped out this morning. Glad to know it's not an issue. Plus, the hackers already stole all my BTC. I have like 0.0001 or something left.