HDFC Bank — credit card process delaying

Address: Hyderabad, Andhra Pradesh, 500018

I have applied credit card on 09/09/2017. All verifications done. On that time executive told it will be delivered in 8 days. But all verifications took 15days. Then due to signature variation it was declained. I hadn't received any clarification regarding this since[protected]. Then i applied another time. Then executive came and collect the signature document. This time executive told with in 3 days it will be delivered all the process is completed. But i havent received any confirmation.
Now i have checked the application status. Still it is in disapproved status.
Please look into this and take action.. I'm fullyunsatisfied with your services. Taking too much time and response.
Application reference no :[protected]s3.
Customer id:73449966
Dob: 23/05/1992
Mobile no: [protected]