Epsilon Senior Web Developer Email Development interview questions

Worst ever interview process. They took more than 2 months to complete the interview process. Total 5-6 rounds. After clearing all the rounds I did not got any reply from them. When I sent an email to the recruiter, she said we are waiting for feedback from business. After 20 days, got call from HR saying that your offer letter is under process, due to unavailability of approval staff it's getting delayed. And guess what, later I don't heard back from them. Totally frustated... 3+ months overall process?? Are you kidding?? And that position is still open 😂😂😣