Amazon India — mail has been received stating they reset my p/w when did not ask for same

Since last week, I am getting lot o[censored]nsolicited calls from different numbers saying they are calling from Amazon customer care and are asked if all orders are delivered. Some 200 paybalance will be credited to my account. They also sending OTP to my mobile
no. I hanged up saying I don't need any gift voucher.

Now I got a mail saying my amazon account p/w has been
reset as per my request, when I did not ask for any p/w reset.

The caller no.s are [protected], [protected], [protected]

Please block my account temporarily.