Brave Rewards unable to link Gemini or Uphold Account

They will tell you it’s fine. Just to advise, the issue comes down to your Profile of your Uphold account. Uphold has their own verification purpose and that’s all they’ll consider. The message you’re seeing is one that shows when people have not put in all of their information. This would be your complete mailing address, social security number (or equivalent), date of birth, etc. If it’s not 100% detailed and accurate, then Brave will see it as if your account is not valid when you try to connect, even though Uphold will show Verified and that you’re fine.