https://www.delta.com/us/en/skymiles/medallion-program/status-match-challenge?mkcpgn=EM_MKTG_SPOP_CL_191021_AA900558_A01A_P0_PRI2&j=88656&sfmc_sub=172116&l=14_HTML&u=4104950&mid=10965567&jb=14