Hello phill -
cancelling an Auctiva subscription would have minimal impact on your currently active listings. If you use our templates, they would remain on the listings; while we do reserve the right to delete images stored within a closed account 14 days after the account is closed, we do not typically do so in that time frame so Auctiva hosted images would also remain available in your listings.
If you use the scrolling gallery, that will cease to operate correctly if you close your account, but you can file a support case from under the Help tab letting us know you wish to close your account and we can run a command to remove the gallery from active listings that are eligible for revision on eBay prior to the account being closed.
We also have a Free Tools plan available, which would keep your account open and your data intact within it which allows for the continued use of the scrolling gallery. Clicking the link: "Free Tools" on our plan selection page will let you see the details of this plan; please note that it does not include the ability to post to eBay.
- Craig