I scheduled three snipes using the iBidder web site. The second one closed 2 minutes after the first, and the third another 4 minutes later. They were not grouped. Only the first one activated. All bids were higher than asking and the second two closed on eBay showing they received no bids. I set snipe times at 8 seconds for all three.

What did I do wrong?

I wish I could tell, but without the item number I could guess that you did not meet other requirements set by the seller or eBay.
If you don't want to share the item number, please let me know what did you see in the status field of those snipes.

Sashka wrote:
I wish I could tell, but without the item number I could guess that you did not meet other requirements set by the seller or eBay.
If you don't want to share the item number, please let me know what did you see in the status field of those snipes.

Thanks. I did receive iBidder confirmation emails from all three bids. I include below the content of those emails which also includes the item numbers. The first one is the only one that eBay recognized and accepted. The other two auctions ended unsold even though my max bid amounts were above the asking prices. In all three cases I had set the snipe time to 8 seconds prior to ending.

The following bid attempt was placed per your request:
Item #391396315897: 1870s-80s John Vogan Sheriff Jackson Amador California Official Business Drytown
Final price: 22.00
Snipe: 25.55
Status from eBay:
You won the item

The following bid attempt was placed per your request:
Item #391396316507: 1886 Jackson Amador RM Ford Co Treasurer CC Jas Barr Camanchee Calaveras Cover
Final price: 20.00
Snipe: 25.55
Status from eBay:
Bidding has ended

The following bid attempt was placed per your request:
Item #201532585369: 1887 Hall of Volcano Lodge IOOF Amador California Letterhead Eckart Signed Letr
Final price: 15.00
Snipe: 20.55
Status from eBay:
Bidding has ended

Thank you.
These were about 2 days ago. There were some network lags around that time so the sniper did not have enough time to resubmit your bid.
I'm sorry it affected your snipes.

OK, thanks for looking into this.

How often do you see this happen? I just started using this service and so far two of the 5 bids I set up failed which doesn't instill a lot of confidence. I need to know I can trust that my bids will be submitted. Appreciate your guidance.

These are usually rare.
Also, I see that it's getting more rare, so eBay improved a lot compared to how it was a few years ago.