State Bank Of India [SBI] — recurring deposit extra deduction

Address: Warangal, Andhra Pradesh

Having a/c in sbi ifc sbin0020913{kazipet telangana} in my rd a/c [protected] every month rs 4000 to be credited from my sb a/c no [protected]
But during this month bank deducted 3 times rs 4000 total rs.12000 excess rs 8000.
After complaining they cancelled standing instruction and said they cannot reverse money back to my sb a/c what to do/why such mistake without penalty for bank. Why because last month for change in ecs /std ins they deducted rs 295 (12.07.17)
Less balance for cheque deducted rs590 (22.08.17)
I[censored]n wanted deduction then less balance in a/c
Also twice deducted for emi and after complaint reversed pl credit rs 8000 back to sb a/c