I'm assuming that since you ordered online you paid either with PayPal or your credit card. If you can't get a satisfactory resolution from the seller then start the dispute/chargeback process, and make sure you have all your documentation available for it. You ordered on 12/5 so depending on your CC or PP's policies for disputes I would start that process by the end of this month.
I also feel for the seller - house burned down + web site malware is enough to hit any small business and in many cases drive it under, but if that's the case why ship anything until you can verify the order with the buyer? Also the lack of notice/tracking number for the inbound critter was completely unacceptable and dangerous given the extremely cold/icy weather in many parts of the country.
Also OP what is the seller's web site?