Giveaway tomorrow… Thread

I've submitted a request for a giveaway for tomorrow, but after doing that it told me that "is currently awaiting authorisation, which can take a couple of days" and that "Once authorized the giveaway will go live on the date you specify"…

I'm slightly puzzled: what should I expect?

Should I just undo the giveaway, and post it again for a later date, or it might be approved in time?