My YoutTube Premium subscription failed to renew on its own yesterday. I went ot fix it today and I'm no longer able to purchase premium with my google account, instead I hit a page that says YouTube is unable to verify my country :(
EDIT: In case anyone finds this in future with the same issue I was able to work around it. You can renew through Payments and Subscriptions in iPhone settings. Not sure whether it will continue to renew, or if it will last out the month, but will update here either way.

Desktop use Firefox and Ublock Origin plugin
AndroidTV use Smarttube
I'd prefer to pay a fair price for YouTube Premium but they kept increasing the price
Now I see NZ$22.99/month (however Google search AI says "YouTube Premium in New Zealand costs $17.99 per month for an individual plan"). What do you see?