Bank of America started charging monthly maintenance fee on checking account based on changed criteria. Earlier to XXXX 2015, BOA used to charge monthly maintenance fee of {$14.00}, if " monthly average balance '' is less than {$1500.00}. Since, XXXX 2015 the bank changed their criteria ie BOA started charging monthly maintenance fee of {$14.00} if single day balance in a month is less than {$1500.00}, even though average monthly balance exceed {$1500.00}. The website, online site clearly mentions maintenance fee will be charged if 'average monthly balance ' during a month is less than {$1500.00}. When you call customer service and complain they give credit on the fee charged. 
