Originally Posted by
normalone
Did you book your stay after you had registered? Typically that is a requirements to get the bonus.
"book and complete a two-night stay between October 6, 2014 and December 20, 2014" (emphasis mine)
The T&C say select DL, stay 2 nights, and "(3) register online at HHonors.com/DELTAMQM
prior to check-out." (emphasis added)
Below that, a note: "Allow up to six weeks after promotion has ended for bonus miles and MQMs to be credited to your account."