buyer hasn't paid for 5 days?

[merlin85348tom]

buyer hasn't paid or contacted me or ebay  for 4-5 days,  opened case,  no contact for 3 days,       saw   2nd chance offer on the item,  so i reposted it to that specific  bidder that lost the auction and offered it to him,   he jumped at it and paid,      and my question is,  why  would ebay offer 2nd chance offer availability if a case is open.????