State Bank Of India [SBI] — Account closure charge

Address: Wayanad, Kerala

Sir/Madam,
SBI, Up-to last month it was known as State Bank of Travancore grabbed me Rs. 575/- as closure charge when I wanted to close my account yesterday, at that time my account has an amount of Rs.1443/-
They already collected all their service charges last month. My name is Sanil Kumar P D, my account no. was [protected].I am financially not good, in my opinion this practice by the bank is not at all smooth and it is illegal, so please provide me justice.
I shall be thankful to You,
Sanil kumar P D