Please take a quick look at Swap 17709

I was hoping you might take a quick look at Swap 17709. Everything works fine, but Node C (Node Runner 0x76ee9082861bda81) gave me a negative rating.
Details see in the swap comments.
Unfortunately, my comments and a direct message went unanswered and the user "was last seen 13 days ago"...

That's not fair and i can't imagine this negative rating of me/my node is in any way warranted. Thanks for your attention/help!