Amazon India — Unauthorised charge of Rs. 999 from my bank account under subject VSI AMAZON STAN

Dear Ma’am/Sir, I have been charged Rs.999 on 13th March 2021 on Amazon. I don’t know why this amount is deducted. I didn’t receive any OTP for that. I am also not a Amazon Prime user. Please resolve the issue as soon as possible.
The reading in my bank account is as follows.. “VSI/AMAZON STAN/[protected]/[protected]”