@petefres2

Two things:

1)  Second Chance Offers in the Motor Vehicle category with a reserve not met , are different  to other categories in that you can change the  price  of the offer ...  from the  actual bidding amount.

Are you using the app?

It may be a glitch  so have you tried using a different browser or device to see if there's a   "buy it now" box for you to fill in either with $600 or a different amount ?

2) Although it may not be the case here, buyers can opt out of receiving second chance offers in their buying preferences , so it wouldn't be possible to send those buyers any offers.