So tried contacting their CC support. Even though you are calling from your registered number, you are asked to enter first 6 digits where you get 2 options:
1 Block card
2 Talk to customer care.
Option 2 is misleading as it asks you to enter the whole card number and your dob. After this you are dumped to the normal card IVR with the talk to customer care option tucked at the last.
Even after all this, it has been 17 minutes and the call is still not connected. I think even SBI connects call sooner than this.
Not to forget