Awful, if you don't hear from the seller by tomorrow, late tomorrow afternoon, I would send another email to the seller telling him/her that unless you hear from him within 24 hours, you are filing a claim with eBay. Sometimes things happen with people and they can't check their emails; on the other hand, in this tech age, there's really no excuse...at least within 2 days.
Did you pay with PayPal? Isn't there a method that you can reclaim your funds????
I remember when you posted the first pics of this cute little machine!!