Amadeus interview questions

Confused..confused... unprofessional...these are the words that best describes the interview process here. I cleared all the technical rounds in the face to face interview that happened in January before Corona came..then came for HR round on another day and then they told to come 3 days later...came and cleared the last HR interview as well..Then recruiter told there might be some delay in releasing the offer letter....then after few more weeks of delay Corona came and then they got really a valid reason that they can't release the offer... Recruiter are very unprofessional in this company...they go for headcount approvals after selecting the candidate...never trust on this company that's all I can say...... recruiter will never reply your mails...must say a service based kind of culture was there and whatever reviews you have read in Glassdoor are true...after selecting and clearing all the rounds...after salary discussion and agreeing to that...they don't release the offer...