BMO Harris Bank Account Or Service Complaint

BMO Harris Bank account or service department,

Checking account Account opening, closing, or management Wisconsin

BMO Harris bank sent an offer to my house ... open an account with $10000.00 for 90 days and receive $200.00 bonus. I opened an account in -. I went to cash out the acct a little over 90 days later and was told payment would be made 120 days after opening the account. I think 90 days MEANS 90 days NOT 120.