I set $678.91 for item 114480645337, someone else win the item for $643, why my bid was not placed?

Hello Fred,
Thank you for your question about an item that you did not win. We investigated to see what we encountered when we placed your bids. We placed the same snipes from two locations and each returned the same result.
Have you purchased from this seller previously? Sellers can set fairly strict preferences in regard to which buyers from whom they will accept bids. Nearly every situation we encounter is listed at the "Bulletproofing your snipes" link below.
https://bidslammer.com/help/bulletproof/
We can rule out many of those for your account, but have no way to know for certain.
We welcome any follow-up comments or questions you may have.