Three questions here:

1. Did you register for the promo?

2. Did you fly on eligible DEQM dates (I believe it started on April 15th, and definitely ended on June 15th)?

3. Did you fly on UA metal?

If the answer to even one of these questions is no for your flights, then you wouldn't have earned DEQM. Note number three needs to be fly on UA metal, not book through UA on UA flight numbers, as miles are accumulated based only on the operating carrier.

Also, in addition:

Were the flights booked before the DEQM was announced?

If yes, then you would have needed to register on the phone to have an exception made for those bookings to count. If you did not, you wouldn't have gotten DEQM.