What are common reasons for UPI refund delays?

Common reasons for UPI refund delays include technical infrastructure issues like network connectivity problems and bank server downtime. Delays can also happen due to banking system complications, cross-bank reconciliation issues, or internal Core Banking System glitches. Additionally, errors like providing an incorrect UPI ID or exceeding bank-set daily transaction limits can hold up the refund process. According to the RBI, most failed transactions should reverse within one working day.