You can keep checking every few days with a private browsing window and 2nd email address (don't login). Then when you get a quote that is higher, login to Carvana, go back to your original quote, edit details, add 1 mile and update. You are locked for 7 more days. Mine has gone up almost 3k in 2.5 weeks. I just keep locking for 7 days and waiting. When it stops going up I’m gonna sell, and order from Gupton.So they offered you more than the original appraisal? Did you ask for another appraisal, or did they just offer an additional 4K?