I checked your account and can see that your billing method has already been verified. You may ask the freelancer to hit the refresh button on his browser, or log off, and log back in on his account to see if it updates on his end.
I'm actually having the same problem. I've gone through the verification process, but freelancers still see me as being unverified. I asked them to log out and log back in and still showing as unverified. Please Help!
I checked your account and it doesn't look like you have added any billing method on your account yet. You may read this help article for more information about the different billing methods available on Upwork.
When you add your credit card as a billing method, you may be needed to verify it. This help article shares more information on how to verify your credit card.