I don't know the answer, but probably not. I think the problem is that Alexa purchasing does not seem to allow us to select any purchasing options like making donations, choosing delivery times, using rewards dollars, etc. We can only ask Alexa to purchase a single item without any further actions. That is probably why less expensive Add-on items are getting through the cracks right now. If Amazon would actually think things all the way through, they could greatly improve Alexa all around and certainly in the area of purchasing. I would prefer to order several items at once by putting each into my cart before paying for all at a single time. I would prefer to be ask if I want to apply rewards dollars, or if I want to make a donation. I would prefer to be asked if I want 1-day, 2-day, or some other shipping time frame. But currently we are only asked to buy, and all the options are populated at Amazon's whim. So unless I can save by purchasing through Alexa, I refuse to do so and prefer the better control I get via a web interface.