M&I Bank customers have threatened to cancel their account with the Wisconsin based financial firm because of technical difficulties, the Milwaukee Business Journal reports. Customers started having issues with their accounts online when the lender officially made the switch from M&I Bank to BMO Harris on Oct. 9.
A BMO Harris spokesman tells the Associated Press it's still working on the technical glitches to convert M&I's IT system to its own technology.
Toronto-based BMO Financial Group announced it reached an agreement to buy Marshall & Ilsley Corp. for about $4.1 billion in December 2010, Bloomberg reports.
Before the acquisition, M&I was the fifth-largest bank in the Twin Cities with more than two dozen branches, the Business Journal notes.