Vantage Automotive interview questions

Relaxed and casual setting two interviews 2 interviewers for first interview , 2 interviews. on first interview conversational and detailed outline of jobscope. Interviewers have reassuring presence and very polite

Interview process took 3 months long with each stage taking 2-4 weeks gap. After I have verbally accepted the offer, the company withdrew the offer without any explanation. Such a unprofessional firm. Take note the notice period for the company is 3 months long !