I'm curious what happens when you enter your prescription info on Zeiss' site. Does it say inserts are available for you?
www.zeiss.com
I feel like someone had to have goofed somewhere saying that it's not possible. You certainly wouldn't be the only person like this and I haven't heard anyone else having this issue.
I fully understand your reaction of disbelief, because the situation seems absurd. So let me give you more details.
After I first ordered the reading prescription inserts and uploaded my prescription, I received an Apple email, subject: "There seems to be an issue with your prescription." I followed the link in the email to the Zeiss website, which said: "Prescription is for near or reading vision only." At first I thought I might have made a mistake and accidentally ordered distance prescription inserts. I also found the link that you posted in your message. Guess what, when I enter my reading prescription there, the Zeiss website told me then and also tells me right now that "ZEISS Optical Inserts are available for you."
So I cancelled the order and carefully placed a new order, making sure I'm really ordering reading prescription inserts, only to get the exact same error message again. That's when I first contacted Apple. They didn't know what was going on (and seemed pretty clued out about the inserts), but at least they connected me to a Zeiss representative. The Zeiss person told me that I'm seeing the error message because they're not making reading prescription inserts for the Apple Vision Pro. And of course the Zeiss rep did not believe me when I told her that the Apple website
clearly and explicitly allows to order reading prescription inserts.
Like you, I thought I couldn't be the only person with this issue, and this prompted me to create an account here and post on the Forum, to see if someone else had the same issue or found a solution.
Quite interesting, because I started following Macrumors in 2004, when I switched from Windows to Mac OS X (good old days), but I never posted.
Anyways... maybe someone who had a similar experience or knows about a solution will read this.
I'll also call Apple again, but I'm not optimistic that they will know how to solve the problem or even understand. I told them twice (the last time one week ago) that they need to change the insert order process on their site so it doesn't offer something that doesn't exist. But no change has been made.