State Bank Of India [SBI] — deduction of money from savings account

Address:	831004
Website:	Consumer forum

On 27/6/2018 rs 8172 was deducted from my account.
It was said that rs 8172 reward points was due against my debit card. By using my debit card while shopping this reward points was earned.
The amount instead of debited was deducted from my account.
Now phone calls are coming saying that it was a technical fault for which the amount is in hold.
Regular calls ([protected]) are coming for the refund of this money and asking for card details.
Please look into the matter and give some clarity what went wrong and how can i get the money refund