Money fine that is wrong

On the 15th of july 59,99€ has been deducted from our account. On our account we can see this payment is made on iTunes (Apple). This has to be a mistake because we didnt buy anything on iTunes. We use Spotify for our music so the 59,99€ had been wrongly deducted. Could you please tell us from where this 59,99€ comes or what we would have bought.

Thank you!

Thibault De Coen