Yes and the way I did it was download the free twitter app, make an account, and snap tha sht outta it with quests lol I never ja twitter and never will, this acc I made was just to spam for valor
when you complete a quest, there should be a big green box that says "complete quest" or "Collect Reward" above that will be a little blue box that says "share via Twitter". clicking the blue box will open a twitter window in-game, and clicking send will double your reward and collect it for you.