Axis Bank — charging minimum balance penalty without information

Address:

Visakhapatnam, Andhra Pradesh

i am the regular customer of axis bank. axis bank have quarterly balance limit of 10000 rupees till march2014. and suddenly they changed their rules per monthly avg balance 10000 per account without sending any mobile message or internet email intimitation. and they have deducted 250+30 rupees from my account for lack of minimum balance.so, this is wrong that they didn't inform me before changing minimum balance.