Hello Colin,
Thank you for your question about your snipes. Please look at the errors shown on your "Completed Snipes" tab.
According to the error messages eBay is returning to us when we try to place your snipes, you revoked our authorization on November 7th. You told eBay not to let us snipe for you.
Please let us know if you have any other questions, or require other assistance. We are happy to help.
bidslammer