Hi womandi,
Given an appropriate shipping service, one that meets eBay's requirement for 1 day shipping, you should be able to select Get It Fast and have it operate correctly for you on eBay from within Auctiva. We are not aware of any difficulties with making this selection and having your listings appear correctly on eBay. In order to look into a problem with listings posting with Get It Fast selected, we would need you to file a support case with some examples of where this has occurred so we can look into the specifics to be able to determine where a problem lies.
Nor are we aware of any issues where selecting Get It Fast would have an effect on the Combined Shipping Discounts selection, and would need to look into specific listings to be able to see what may have occurred.
Without being able to take a look at some of the listings where you have encountered difficulty, I am unable to say what may have occurred for the listings you have had this difficulty with. As such, I encourage you to file a support case letting us know the details of this experience and including some specific examples where there has been difficulty so we can look into it. You can file a support case by selecting that option from the Help menu of the site.
- Craig