PhonePe — deducted 550 rupee from my bank account without my permission want refund money back.

Address:

Bangalore, Karnataka, 560068

Hi all.
Actually i have ordered online one kurthi on some website but they ordered wrong product so i have raised complaint in consumer court department and then one employee called me saying that i am calling from phonepe regarding refund your money back to account so he asked some bank account info like 16 digit debit card number then he generated one pin and initiated 550 rupees amount deduction from my account from him.
Phonepe has deducted 550 rupee from my account froudly without my permission see below msg-
Dear customer, inr 550.00 was spent using debit card of account xx9588 on 26-dec-17. Info: vin*phonepe pri. The available balance is inr 2, 708.58.
Please refund my money back.

Thanks
Shahjad