Finished epic Arah, no rewards?
Doesnt have to have been a disconnect at all.
Completion rewards are pretty screwed up at the moment. Sometimes you get them and more often you dont get them. Havent figured out why so far and support just gives random answers a la “check your mailbox and make sure it is empty” (as if that has anything to do with it lol) or “we wont restore lost items” (did you know, you cant loose what you never had -.- )
And theres the matter with Arah event being bugged anyway, maybe that interferred with your reward?