Itunes Combill — fraud transaction with my debit card

Hi
I m riya i m the card holder ending digit 1124. This company make false payment by one times by my card the first one was made on 26/11/19of rs 750. It m very shocked to see this. There was a first time this type of things was done with me. Please check this type of matter immediately. I want to refund the money as soon as possible. Kindly please do attention on this. Otherwise i will do some strict action.
Thanks
Hope for fruit full result