Who is first merchants corporation? Thank them. First Merchants Corporation is the largest financial services holding company located in Central Indiana. We provide our customers with broad financial services delivered locally by bankers who are known and trusted in their communities.How do i contact first merchants bank customer service? First Merchants Bank. Chat With Us. Customer Service: 1.800.205.3464 (Mon.-Fri. 7:00 a.m.-8:00 p.m., Sat. 9:00 a.m.-3:00 p.m. Eastern Time) Holiday Hours. Lost or Stolen Debit Card: 1.800.205.3464 Lost or Stolen Credit Card: 1.800.558.3424. Treasury Solutions Center: 1.866.833.0050 (Mon.-Fri. 8:00 a.m. to 6:00 p.m. Eastern Time)Where is the first merchants bank located in indiana? First Merchants Bank. First Merchants Bank has 121 banking locations. Their corporate headquarters is listed as: 200 East Jackson Street in Muncie Indiana. Below you will find ratings, reviews, corporate information, directions, office hours, their phone number, online banking website, and branch locations. Bank Headquarters.How to contact first merchants private wealth advisors customer service? First Merchants Private Wealth Advisors Customer Service: 1.866.238.0082 or 765.747.1300 (Mon.-Fri. 8:00 a.m.-5:00 p.m. Eastern Time)