ICICI Bank — Icici credit card application process approval process

Address:

Meerut, Uttar Pradesh, 250002

Today i got a msg from icici credit department saying that "dear customer, your icici bank credit card application has not been approved. Pls re-apply after 6 months from the date of your current application.",
This is the second time my application got rejected.
I got a email stating that apply preapproved icici credit card.
First i waited for 2 weeks after online application. No one called me for the documents process. I uploaded my documents on loan. Icicibank.com still no response from icici bank. After few days i called customer care they said wait for 2 3 days someone will collect documents from you if not then contact branch
After the waiting period is over i contacted the branch they made a fresh application for credit card application refrence no.[protected] which is declined today after the long waiting period.
I have contacted mr. Aman (Icici credit card executive) he told that the reason for rejection is cibil. I have applied after checking cibil report in which my cibil score is 783.
How can it be rejected on the basis of my cibil score
According to banks 750+ is required
I dont have any settlements or any errors in my cibil.
I pay all my dues on time
I cant understand why the reason for rejection is cibil
I am not satisfied with the icici credit card approval process
Worst service provided by icici bank
Kindly look into this matter

Regards
Haider khan