Verified: 12 May 2026 04:30 am IST
Industry: Banking & Financial Services
Jurisdiction: India
Primary Regulator: Reserve Bank of India (RBI)
Important Safety Warning: Beware of the “KYC Update & Account Block Scam.” Scammers frequently buy ads on Google and Social Media displaying fake Union Bank customer care numbers. This is a scam. Union Bank staff will never ask for your Vyom/UNION EASE app password, Internet Banking login, ATM PIN, OTP, or request you to download screen-sharing apps (like AnyDesk) to process a refund or unblock an account.
Level 1: Customer Support (Initial Complaint)
How to complain: Register your complaint (failed ATM withdrawals, unauthorized digital transactions, or branch service issues) directly via the Online Grievance Portal on the official Union Bank website (unionbankofindia.bank.in). This instantly generates a tracking number. For immediate 24x7 telephonic assistance, call their primary centralized toll-free contact centers at 1800-2222-44 or 1800-208-2244. You can also utilize their WhatsApp Banking (UVConnect) or email the central helpdesk directly at customercare@unionbankofindia.bank.in.
Availability: The toll-free IVR, digital portals, and email desk operate 24x7. Branch banking hours are typically Monday to Friday 10:00 AM to 4:00 PM, and alternating Saturdays.
Timeline: Union Bank must acknowledge digital payment failure complaints immediately. According to their 2026 Customer Rights Policy, they aim to resolve standard Level 1 queries within 7 working days (with priority given to digital transaction auto-reversals).
Level 2: Internal Escalation (Principal Nodal Officer)
Who to contact: If Level 1 support fails, your refund is stalled, or you receive an unsatisfactory resolution after 7 days, you must formally escalate. You must email the Principal Nodal Officer (Chief Grievances Redressal Officer) directly at pno@unionbankofindia.bank.in. You must include your registered mobile number, Account Number, and your Level 1 Complaint Reference Number. Written legal notices and formal grievances can be sent to their Corporate Headquarters (Customer Service Excellence Cell, Operations Department, Central Office, “The Arcade”, Tower 4, Second Floor, World Trade Centre, Cuffe Parade, Mumbai, Maharashtra - 400005).
Timeline: Under RBI banking regulations, the internal grievance officers must acknowledge escalated disputes and provide a final, reasoned resolution within a maximum of 30 days from the initial date of the complaint.
Level 3: Regulatory Authority (RBI Integrated Ombudsman)
Authority: If the Union Bank Principal Nodal Officer rejects your claim, fails to provide a satisfactory resolution, or does not reply within 30 days of your initial complaint, you must escalate the matter to the banking regulator.
Portal/Contact: You must submit your grievance to the Reserve Bank of India under the Reserve Bank - Integrated Ombudsman Scheme (RB-IOS). Complaints must be filed through the centralized Complaint Management System (CMS) portal at cms.rbi.org.in. Alternatively, you can email your complaint to the central processing center at crpc@rbi.org.in.
Timeline: Grievances escalated to the RBI Ombudsman are investigated with a targeted resolution window of 30 to 60 days. The Ombudsman has the power to mandate compensation for actual financial loss and mental harassment.
Level 4: Legal Action (Final Step)
Pre-Litigation: Financial service deficiencies fall under the Consumer Protection Act. The RBI Ombudsman and the National Consumer Helpline (NCH - 1915) act as your final administrative mediation steps. Since Union Bank is a Public Sector Undertaking, you should also utilize the CPGRAMS portal (pgportal.gov.in) to flag the issue to the Department of Financial Services (Ministry of Finance).
Court/Arbitration: If you have suffered significant financial loss due to banking negligence or systemic failures that the Ombudsman could not fully resolve, you must file a formal complaint with the appropriate Consumer Disputes Redressal Commission using the newly integrated e-Jagriti portal (e-jagriti.gov.in).
Timeline: You must file the consumer case within two years from the date the cause of action (the financial service failure) occurred.
Community Action: Is Union Bank refusing to reverse a failed IMPS transaction, or are you looking for the correct template to formally escalate a branch-level dispute to the Cuffe Parade Headquarters? Reply below (do not share your passwords, bank details, or your exact Account Numbers), and our community will point you to the right resources!