i was given the same reply more than 6 months back when i mailed them after rejection. What i did was few days ago, I applied for ixigo again and left the application halfway hoping to get a call from the bank. I got a call from AU bank executive today asking to complete application and then i mentioned that i was already rejected for having 12 cards so no point applying again. He said no such criteria exists which i did not believe but still applied hoping he can bypass that from the backend. And guess what! My application got approved within 5 hours and card will be dispatched in next few days. funny thing is i reside in unserviceable pincode and gave my cousins address in Mumbai and a fake address of my company since it does not have a branch in mumbai and it still got approved but main thing to note is that I already have a Royale savings account with them due to which they possibly did not verify any of those details.