If you used UPI, this may have happened because:

• The UPI ID linked to your bank account is not linked to your trading account
• You did not accept the fund transfer request sent to your UPI app
• You’ve exceeded the daily UPI transfer limits
• You’ve entered an incorrect UPI ID 
• Your account is blocked due to suspicious activity

If you used net banking, this may have happened because:

• You have tried adding funds from an unlinked bank account.
• The transaction timed out.
• You have entered an invalid OTP.
• You have pressed the back button or refreshed the page.
• Your bank account is blocked for online transactions or is currently inactive.
• You declined the payment request