### Possible Reasons for Card Purchase Failure The most likely causes for a failed Debit or Credit Card transaction are: - **Security Failure:** Incorrect CVV, Expiry Date, or a wrong/delayed entry of the OTP (One-Time Password)/ [PIN](https://paytm.com/blog/paytm-help/how-to-create-change-upi-pin-on-paytm/). - **Bank Restrictions:** Exceeding the [daily/monthly transaction limit](https://paytm.com/blog/payments/upi/upi-transaction-limit-increased/), or the bank has temporarily blocked the card for security or unusual activity. - **Insufficient Funds:** The linked Debit Card account lacks the necessary balance for the purchase. - **System Conflict:** A previous purchase attempt is stuck in a pending state, rejecting the new transaction. - **Network Glitch:** A temporary server issue or timeout on the Paytm platform, the bank's system, or the voucher partner's network. ### What You Should Do - **Verify Details:** Re-attempt the purchase, carefully checking the card details and entering the OTP immediately. - **Check Bank Limits:** Contact your bank to confirm the card's status and your daily transaction limits. - **Alternative Payment:** Try using a different [Debit/Credit Card](https://paytm.com/blog/credit-card/difference-between-credit-card-and-debit-card/) or switch to UPI. - **Contact Support:** Note the failed transaction ID and reach out to Paytm Help & Support.