Fake booking and invoicing done

Hello 

i had listed my property long back , as i waited for 5-6 months but I didn’t had any single enquiry or booking done by anyone and after somedays i deleted the application. Fews days back i was getting huge amount invoice from booking.com , i ignored it and today when i login into my account after many days i m. Seeing that it is showing some guests had booked the property , what the shit is this , fake bookings ? And charging fake commissions on it ? This is what booking.com do ?  really disappointed by this