The Reserve card has a 10K MQM/40K miles offer after first $3K spend. Presumably, OP has not had this card before (otherwise would be ineligible for bonus). If OP means end of this month (tomorrow), I would not expect card to be available by then. If OP means end of Dec, it's a bit risky as the MQM bonus might post in January. Unlike the annual spend MQM boosts, I don't believe they backdate the sign-up bonus MQM's just because spend was in previous year. If OP has DL Plat Amex, there's a 5K MQM bonus for upgrading it to a Reserve card (or at least there used to be) which I believe posts immediately (I did the upgrade a few years ago).
Last edited by xliioper; Nov 29, 2018 at 10:17 am