[Resolved]  HDFC Bank — Credit Card approved then rejected in two days.

I got call from the bank for credit card and I said yes for it. Everything is done. Got message that your application is submitted and in process with application ID., check after four days. Got 2-3 calls for verification. Then application status is approved. Then I got mail that “ We are glad to inform you that we have reviewed and processed your application (reference no. 23AXXXXXXXXN1) towards the HDFC Bank Millennia Credit Card instead of the card for which you opted.”
Then yesterday I got mail stated that your mailing address is not verified. So you have to send self attested address proof by post.
Again 1 mail came that“ We wish to inform that Bank shall consider all the credit card application in line with the bank's internal credit policy (which is based on a combination of financial and related criteria and/or statistically determined scores to assess credit eligibility) and operating/credit processes (which include a combination of verifications, credit bureau reports and document verifications).
During such routine verification process, we note that your application did not meet the internal credit policy / guidelines of the bank and hence, the credit card which was despatched to your mailing address and was immediately blocked from further usage.”
Very disappointed by HDFC card service. I have 5 cards on other banks but they haven’t done anything like that.