Oh, this is terrible. I agree with
@restricter that this can be returned as SNAD. $1,800 is a lot to pay for a dirty coat with holes. I don't understand how a seller can send out something that cost that much in that kind of condition!!!

I am so sorry this has happened to you, especially for a second time.
I don't know how much cleaning costs are in NY but it's around $50 or so here depending on where you go. I have no idea how much it would cost to repair it as I've never had to have one repaired. To have a fur reworked/restyled is expensive. If you want to try & keep it, I would inspect every inch of the coat, stress points, seams, ect, to see if there is more damage. Didn't the seller list the coat as new? This is not a new coat. Once you've taken it to a furrier & find out the costs to clean & repair any damage, you can weigh the costs along with the price of the coat to decide if you want to keep it or not. It may not be repairable. I know solid white is hard to find, but personally, I would open a SNAD case so I wouldn't have to pay return shipping. But you know how much you love the coat & it's your decision on what to do. If you decide the coat is still worth it with the added costs, I would demand a substantial partial refund. $1,800 is too much to pay for a damaged, dirty coat & totally unacceptable.
BB on the ebay forum can help you if you decide to dispute the transaction. If there has been any contact & conversations between you & the seller, be sure to save it.
Please keep us informed on what you decide to do.