Hi .. No , sellers are bound by the terms of their listing , see terms and conditions..
http://pages.ebay.ca/help/policies/selling-practices.html. Perhaps forward link to seller.
If you purchased , paid and seller refused to ship and refunded payment, can leave appropriate feedback with low DRSs. 1, 2 stars really hurts a seller.
I would not purchase if couldn't be sorted out in advance.