AstraZeneca Product Manager interview questions

Got a call from HR and enquire about my overall experience and my expectation. Attend technical interview in AZ chennai office and it went for nearly 1 hour. Next day get a call from recruiter & get scheduled for HR interview. HR didnt join & after I called recruiter HR joined 15 mins later. She was not ready to take interview - only for the name sake she asked some query & there was no negotiation happened on my expectation however I explained my expectation. Next day around 10 PM, I got a call from same HR and asked same question where she asked in previous round. And explain me that I will get a offer in next couple of days. There was no proper communication - suddenly after a week get a mail from workday about my offer letter. I was shocked by seeing offer letter as I was given with "Assistant PM role" instead PM role for which I had went for interview and gave very min hike which didnt meet market standard. I called HR & she casually replied that if you dont like simply reject the offer. So I rejected it. Overall: Very arrogant HR team in company