Same exact issue. I submitted two support tickets but both probably got buried because of the sheer amount of people who have this problem
Issue: won comp twice but lost elo for both rounds and got a 30 min ban.
Affected player: Necron#12542 (Bnet tag)
BigFatPanda (Destiny IGN)
to bungie staff who reads this: solving this issue is highly recommended due to it violating your terms of service (unnoticed disruption of service) in order to avoid mass quitting of players and possible lawsuits
I don't give a shit about revoking bans, it was a 30 min ban and was over a long time ago
I lost rewards that i spent time on due to unannounced disruption of service. That's the kind of thing that causes people to quit