Originally Posted by
tardyturtle
Per Delta.com
I previously held the Delta Gold AmEx and last year I also signed up mid-year for the Delta Reserve AmEx (to take advantage of sign-up bonus). Once I got the Reserve card, all previous YTD spend on the Gold card immediately qualified for the MQD waiver. After cancelling the Gold card, the YTD spend on the (now cancelled) Delta Gold AmEx continued to count toward the waiver. I'm not 100% sure if the spend will carry over if you simply upgrade rather than signing up for a new card (and holding both simultaneously for a period).
Does it work the other way? If I'm already Platinum AMEX holder but choose to get the Reserve Card for the SkyClub and 1st Class Companion Ticket, while still holding the Platinum AMEX for the $25K waiver for Platinum Medallion, does the small spend on the Reserve Card contribute to the Platinum waiver amount?