ElevenLabs Technical Support Engineer interview questions

Firstly, if you get interview from them don't stop applying for other jobs or even take them seriously as an offer. It takes them 2-3 weeks to reply after each email and interview. I made it to the third and final interview and the guy in the call said all good. 2 weeks later regret to inform you email but thats fine. I ask him what I did wrong ghosted.