My bonus MQMs for my Reserve signup just posted the day my November statement closed. One thing that took a minute to figure out was that the MQMs didn't automatically show up in my Delta account. Turns out they were "banked" for 90 days to allow a window to transfer them to someone else if I desired. I had to go into the "MQM Gifting" section of the Delta homepage and choose to "Add the 15000 MQMs to my SkyMiles account".