Onebip false payment - fraud

Hello,Yesterday I received a message from my telecom provider that I paid 19,99 Euro to Onebip. But I don't have an account at Onebip, and I never gave an order for payment. I hereby contest this payment. If there was a purchase, I wan't to cancel it because it was not me who did it. If there would be a subscription, I want to end it.My mobile number is +32 473 73 76 59