Relax, I'm also 12 days in, my msg is also unread atm. But msging multiple times does not help the situation, it just means the mods will have to look at your msgs multiple times instead of helping someone who in just as much of a hurry as you. If I had to hazard a guess, they're halfway through the 19th and they're continuing as fast as possible. I know this situation sucks but it is what it is, and spamming the system won't help you, me or anyone else in a hurry.
