Same thing happened with me. I'm a BMS Superstar user, got the offer in app, tried to apply it but it shows bank's internal criteria did not meet. It could be due to the fact that I am already holding LTF RBL Bank Platinum Delight Credit Card tried and RBL does not allow 2 credit cards. I tried to follow up with CC over phone and email to enquire how I can get BMS play card and whether I can upgrade/cancel my existing one but got typical response.