For any card related enquiry / report your card as lost or stolen, review account activity, or all other customer service inquiries you may please visit Union Bank of India Branch or for any transaction dispute resolution or for other general correspondence you may write toUnion Bank of India
New Initiatives Department
Union Bank Bhavan, 239, Vidhan Bhavan Marg
Nariman Point, Mumbai 400021, India.
Phone: 91 22 22896661.