How can we stop eBay users from listing items then not sending items after you have paid for item, don't you think there should be some sort of penelty as in never allowed to use eBay banned for good.

Problem is i brought a cannon 7D for $701 item 191363946724  paid for it straight after auction ended, The point is it was brought for my daughters birthday now i may have to buy new one out of retail shop so in fact this eBayer cost me $400 in the differance between the two items.

There appeares to be no rules when you buy on eBay sites, i consider my self to be an execellent eBayer and pay straight after bidding do i change things and go with the rest that some do and maybe pay latter or cancel cause i have had second thoughts?