PowerSnipe eBay Auction Sniper
Full user review
"Not reliable, non-existent support."
If/when it works, it works.
On random occasions, your bid is not submitted. Presumably due to internal reliability/volume issues. . . . . If you should try to reach them for any reason, you will neither get a response, nor an acknowledgment of your email. You are provided no contact telephone numbers. If they don't want to be reached, you will not reach them.
I am replacing this vendor with a more reliable, even minimally customer friendly vendor.