So after back and forth on mails, I found the application number they were quoting were for WOW card which I never applied for. I had just entered my details to apply for Power+ but they had showed FD backed cards after submitting my details.
So I asked them to cancel the application and the issue with the link was that when you click on the link given in the email it was redirecting to some other link which was giving bad request response. So I copied the link text instead of copying the link and it worked and took me straight to apply for Power+. I entered all the details and submitted my application and after 5 mins I got the link for vKYC which I also completed.
I entered the address of a friend who stays in gurgaon and my office address is also in gurgaon. I hope this doesn't cause any issues. I had heard that they sometimes don't offer cards when office address and residential address are in different cities.
Now the application is stuck in this phase for 2 days. Does this usually take this long or I'm going to get rejected?