Just checked the high level logs for more info. Looks like you signed up for a Vercel Pro team and then cancelled it, so it still shows as a "team" plan until that subscription expires. Which appears to be why v0 is only showing team options and not the individual Premium plan.

I'm going to check with the team to make sure this isn't a bug and find out what else I can do to help you get your Premium plan started 🙏