I'm not sure that you actually can use Crysta on a Euro account.

I'm from Australia, my sub is paid in euros but the option to use or buy Crysta doesn't seem to exist anywhere. I've tried to purchase it before, hoping I could use PayPal when my normal credit card had issues, but couldn't even get to the page to purchase it.

So that part might have nothing to do with your account troubles and just that you don't have the option.