The National Payments Corporation of India (NPCI) provides multiple channels for assistance, especially for UPI-related issues. You can dial the 24x7 toll-free customer care number at 1800 102 5624 for immediate support. Additionally, you can send an email to
[email protected] to report grievances or provide feedback regarding UPI transactions. NPCI also operates DigiSaathi, a 24x7 helpline for digital payment queries.