My mother is giving me her Companion Certificate for upcoming travel. We are following all the rules - purchasing my flight with her credit card - allowing me to utilize the Certificate for myself - the Primary traveler on the itinerary with my wife as the companion. I know I will earn the Miles and I know I will be able for upgrades since I am gold medallion - but will I earn MQD's. I am checking w/ Delta - but if anyone has experience with that - please advise.