I achieved SS in Gauntlet and received only AAA reward. I know I'm not the only one who had that same exact problem. That resulted in a shorting of Frontier Coins but also for Ancient Mariner Fragments (leaving me at 485/500, when I should have received enough to have him).
Anyway, I've heard others get this resolved through support, so I sent a ticket on Sunday evening. How long should I wait before contacting them again? What is the typical timeframe of response? That seems like a long time for a fairly simple problem.