My personal experience with DoD civilian purchases tickets thru just telephone convo (haven't been to the parks yet to try this in person) with Disney's Ticket Services CMs, the upgrade is insanely expensive. The CM kept telling me it's because i got a "discount", I would have to pay the difference to the full current price of the tickets I wanted. I wanted to upgrade my 7 day, one park per day ticket to hoppers. Paid $425 each & was told it would be $270.22 EACH which makes the price of the 7 day hopper almost $700, but the direct from Disney 7 day hopper for my dates are $633.91 from the WDW website. I don't get it. I've called MULTIPLE times & spoken to different CMs on the phone, but they can somehow "see" the ticket has some sort of military discount on it & they wouldn't tell me the price they're basing it on. I asked the CMs if I would get better results speaking to someone in person at the ticket counter outside the park & they said no. The tickets are discounted, so I definitely have to pay that much more. I don't understand because if others buy tickets from other verified vendors, their upgrade to hoppers is usually $85 per person which is 1/3 of what they quoted me on the phone at least 3x. I tried to email to see if I could get a better response, the email from Disney said to call Ticket Services. I'm going to ask when we get to the parks about upgrading to hoppers because I know the military is a verified vendor & see what results I get.
I don't know what to tell you about the military ID though. I still have mine, but I've never been asked to show it when using my tickets in the 3 times I've purchased as a DoD civilian, but I also wasn't trying to change what I purchased. We'll see how it goes this time. Mine were purchased when they were only selling 1-7 days, one park per day before WDW shut down in 2020.
I'm super disappointed in how this is being handled.