Who to pursue to get refund, dentist or Clearcorrect?

Ultimately, I would want my teeth to look and feel great, so before pursuing a refund, I would work with your current dentist to see if he/she can finish the job.  If you have no trust in your dentist at all, then get a second opinion from another dentist that does Clear Correct.  It may be possible for you to transfer your case to another dentist.  I've had great experiences with Clear Correct and I actually prefer it over Invisalign, but every person is different and every dentist has a different story.  Good luck to you and I hope your current dentist can fix your issue without pursuing a refund.