A. Ensure that your phone number is correctly registered with the bank. Check your phone's network signal and ensure it is strong enough to receive messages. Sometimes, restarting your phone can help in receiving delayed messages. Also, check if your phone's message inbox is full, as this can prevent new messages from being received.

B. Try using a different network connection, such as switching from Wi-Fi to mobile data or vice versa, as network issues can sometimes affect OTP delivery. Additionally, ensure that your phone is not in Do Not Disturb mode, which might block incoming messages.