Hi,
I faced the same problem regarding sale of an Emerald. A buyer put a bid and won within half an hour of his registration. Neither did he pay nor respond to any of my emails.
I know there are means to stop just casual buyers but then by implimenting those one can loose genuine bidders also. I think in case of non-payment / non-response by new buyers with 0 or lower points, one should relist the item even when the Dispute console is on. In the rare case of the buyer really paying after a long time and simulteneously, another buyer winning the relisted item, ebay should allow the seller to cancel one listing without hassle.
Regards
Swarup Dutta
.
Best Regards
😄
Swarup
Kolkata