I faced the same issue last week. It did not send any otp for a online transaction and suddenly I got all of them after 5 mins. Really bad.Update: got 5000 points bonus.
I am trying to make a payment but not able to get the app notification or OTP and there is no 24x7 support to fix. Anyone else faced this issue? I have done a few transactions with this card with swipe to approve method.
Also yesterday they sent me an sms to refer other user but they wrote someone else name in message weird.