Hi @Carrie326,
I've not had any experience with refunds so I'm hardly the authority, but it doesn't make sense to me either - you haven't been paid yet for the booking so why have airbnb withdrawn funds from your account?
There seem to be a LOT of payment issues going on at the moment - hosts taking ages to get paid, I'm wondering if this is yet another glitch?
I think all you can do is continue to hound them ( politely)
A number of hosts report greater success using twitter to post a problem than emailing or ringing.
Good luck.
Let us know how you get on.