Endless Space 2 Amplitude Store link not working 3 years ago

Hello there! For some reason the "buy" button in the game's store page isn't working. I've tried it on Firefox and Edge, adblocker disabled... And nothing.

Both my Steam and Epic Game Store accounts are linked, and I'd really like to get ES2 Definite Edition through Amplitude.

https://store.amplitude-studios.com/en/endless/endless-space-2

Thanks in advance,

Tony

EDIT: I'm logging in from outside the EU (Africa), does that make a difference?

EDIT2: Posted on the Tech Support subforum as well, admin Sobert is on the case. :-)