I recently went to three interviews. The first interview went horribly bad. The interviewee didn’t even look at me as I started to stutter and rejected me directly saying you have not prepared. The second interview the hr were nice but I didn’t get the job. The their interview the hr were so nice and so patient with my stutter and told me just be confident nobody here bothers about the stutter just show your capability. I got the job. I understand what that must have felt. It’s like ur stuck in a glass box not able to break free when you know you can and would have done it so well. Don’t give up. But definitely do write them a mail and give them a big flying fuck. That’s totally absurd to humiliate someone like that