(Had to create a new account just to post this)
For the past few days I haven't been able to login to my GitHub account because I don't receive the device authorization code in my e-mail. I've sent two (!) support tickets already in the last 5 days to no answer. I've quadruple checked inbox, junk, trash, nothing.
Support is occasionally overwhelmed with tickets and can take a few days to respond. What's your original github login?