Can I cancel my transaction after payment?

Generally, you cannot reverse a completed transaction on a payment platform like Paytm. If you realize you have made a wrong payment, you should immediately contact the customer support of the service provider to report the issue. They may be able to assist in resolving the situation or provide guidance on the necessary steps to request a refund. Failed UPI transactions, however, usually trigger an automatic refund process within 2-3 working days.