That sounds really bad, especially since your score is exactly 70 percent. I would wait for the Databricks team to determine whether the issue is with scoring or reporting because you have already created a support ticket. Hopefully they can clarify it soon. I found that practicing with Certs4Sure in addition to the official Databricks learning resources was helpful for building confidence for your next attempt (if that happens). I hope this turns out to be a system issue rather than a real failure, and I wish you the best.