We would like to show you a description here but the site won’t allow us. You can contact customer care or visit your bank branch with the necessary proofs to request a refund. The refund process may take up to 45 days, depending on the accuracy of the details provided for the incorrect UPI transaction. If you have made a wrong UPI transaction or facing any kind of failed payment issues, you can easily register a complaint through the UPI complaint number or through the NPCI website and get your issue resolved. This guide explains: Official UPI complaint number . How to register a wrong UPI transaction complaint online? How to track online complaint status with NPCI. Wrong UPI Transaction Complaint Number The official NPCI UPI complaint number is 1800-120-1740. This number is available 24x7 ... Customer Care Assistance: Alternatively, if you prefer to speak directly with BHIM’s customer care to lodge the UPI complaint, you can select the “Call Bank” option. Contact Customer Care : By choosing the “Call Bank” option, you will be connected to the BHIM customer care team through the toll-free number 1800-120-1740.