Hi, I suggest you file a support request directly regarding the listings that were doubly sent, I have posted hundreds through Auctiva over the last year with no doubles.
Where on these boards are others having this problem, I'm not being awkward it's just that titles of some questions are vague and threads do diversify ?
Double listing only happened to me in my naive young eBayer days when I thought you could rely on Turbo Lister and eBay's listing confirmation e-mails, dummee
I now know that sometmes I can get double mails sometimes none, in fact a couple of weeks ago I listed 115 items from here on one evening, some new some relists all of which hit eBay on time when I checked on my eBay.
The listing confirmation e-mails came back over 3 days for only a handful so I do not bother even setting that option now.
One less piece of mail to clog my inbox