I am in the same boat as
thumbelina and am curious on the answers. I am getting dangerously close to MM and am thinking about buying 10,000 miles with the offer I received. (I am 3,000ish miles short but will be flying before the end of the year to qualify.) Does anyone have experience that the miles get you EQM AND are added to lifetime miles? Thanks!!
EDIT: I did call Customer Care and they indicated that the miles only count for 2018 EQM and not for Lifetime EQM.