Hello Benjamin, and welcome to planDisney!
I know firsthand how it feels not to be able to get the reservation you desire at
Space 220 Restaurant at
EPCOT! Because of system errors, all the reservations were gone by the time I could get in, and I was unhappy. Ultimately, it all worked out, and we were able to take that ride to space and enjoy all this restaurant had to offer.
I am not sure what the issues may have been with the system, but I recommend you keep trying to get a reservation, as an opening can become available at any time before your arrival. Once you obtain that reservation, I promise you will not be disappointed with the experience.
Please let us know if you have additional questions before your arrival date; we are here to help.
Have a magical meal!
Raquel