I was supposed to maintain an average quarterly balance of rs. 00/- In by s/B a/C no. 2112 . But now as per the new rules I am supposed to maintain an average monthly balance of rs. 00/- . The bank intimidated us the new rule on 21st march 012. But I was very much surprised to find that the bank has already charged rs. 5.75 as amb charges on 10th feb. 2012 for the month of feb.2012 giving us no time to respond or cope with the new rule. How can the bank charge the customers without informing them before hand about the new rule.