Unable to claim t-shirt after completing Neo4j Certification Exam

I have just passed the Neo4j Certification Exam. But I am unable to claim my t-shirt.

I get the following error Could not validate your address when I submit the form for the t-shirt. Is there a workaround for this? Thanks for the help!

All t-shirt orders are now processed through GraphAcademy. If you go to Certifications in GraphAcademy and click on your Certified Neo4j Professional badge, you should see rewards to order your t-shirt if you have not done so already

https://graphacademy.neo4j.com/account/rewards/

Elaine