Mark Levinson ML7 auction


I asked the seller and he confirmed that he can ship it to oversea. I won the auction about 10 days ago , met the reserve price but the seller did not send me the shipping cost to complete the deal. Subsequently I saw the same seller putting his ML7 to another Audiogon auction Which will be ended by tomorrow. I asked the seller but he did not reply. I reported to Audiogon and I have not received anything from them. I still want to buy this ML7. What can I do? Any advice is much appreciated. Thank you.
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@blundell
Are you sure that you won it? Just because you met the reserve price does not mean that you have won it. If you really want it you should place another bid (minimum & maximum) and see what happens!
The seller must have had a change of heart. The ad was amended on 5/08/17 and now states specifically “USA sales only.”
@yogiboy 

Yes I believe I won it because this item has been included in my folders "you won the auction" and "you bought the item".
@cleeds and
@dill

It appears that the seller is a famous hifi reviewer so I thought he is reliable based on his public image.

My major concerns are whether the seller has broken the rules and why Audiogon did not response to my complain/ report.
@blundell
Consider yourself lucky that you didn’t get it. You can get a much better preamp than an over 35 year old one !