Amount deducted twice for SBI Insurance policy

I have taken SBI insurance (PAI 2 lacs) and every year Rs. 100 gets auto-deducted from my SBI primary account for the same.
On 3rd Oct 2017 Rs.100 got deducted twice, for which I have raised 2 complaints with SBI (3326936398 on 3rd Oct’17 & 3393798754 on 27th Oct’17).
When checked complaint status online it shows “Your complaint has been routed to Branch:Fort Aguada Beach Resort for immediate redressal”. And, complaint status: “Excess amount refunded on 3/10/2017.
I have been chasing branch from a month now (met branch manager, called branch employees several times) all they tell is “it will be refunded in 7-10 days” but it is a month now. Request you to kindly consider the matter.

Mohan Rathod
Candolim 403515, Goa
Email: mxxxxxxxxx2@gmail.com