NTENT Machine Learning Engineer interview questions

I had a couple of round of interviews before being called on-site at Carlsbad. They said they would reimburse the cost of my travel and accommodation. It has been more than 35 days that I am still waiting for my check. It cost a lot, last moment flight from East Coast to West Coast. One day I get a mail stating that my check has been approved, a few days later get an update that my check is still in pending state. Non responsive HR. Does not reply to emails and calls even after leaving multiple voice mails. Definitely no synchronization between the HR and the Accounts team. One of my worst experiences overall.