Indian Overseas Bank — complaint about branch manager

Dear sir
My mother name poongodi.. Having account in vaiyampatti branch ifsc code (Ioba0000520)... (Indian overseas bank)... Every time my mother going to your branch... There is no response from bank side... Including manager... Ur people r not guiding properly...in our village so many people r un educated... But still bank people's r not handling our people properly... Last time my mother requested for passbook entry... But ur people didn't give response to customers... Pls kindly address this issue... And warn ur bank people...

Thank you