State Bank Of India (SBI) — Edu loan subsidy

I have taken edu loan on apr 2009 in sbi vilathikulam br, loan a/c no [protected], im eligible for int subsidy but til the date i not yet received any subsidy, if i ask manager he told no subsidy who told to u the edu loan has subsidy, pls take further action, my family is below poverty line, i hope u'll take action abt my int subsidy, branch code 3925