Why am I unable to purchase the Elsweyr and Summerset upgrades? I have the TESO base game via Stadia and these two upgrades are listed as available add-ons but can not actually be purchased.
Is that maybe because you own those upgrades already in your PC-account which is linked with Stadia?
If not: Do you get any error message or how does it look for you in the Stadia Store? What exactly is the problem that you can't purchase it?
Nope. I don't own these upgrades or any TESO products on any other platforms. Attached are screengrabs of what I get on the Stadia store. You'll see the two upgrades are listed as add-ons to the base game, but when I click on either, instead of a price or a "buy" button I get the message that you need the base game, which I already have.
@Archie have you purchased ESO directly or did you purchase the base game on Stadia directly? If you haven't purchased it on Stadia: Have you linked your ESO account with Stadia in the account settings of your ESO account?
What you could also try is to purchase it in another way, so if you tried via browser on stadia.google.com, try this time to purchase the addons via the Stadia App. If that works, you may need to do some browser steps for Chrome.