New ownership

Hi there, 

Our company has recently taken on a hotel, and I am trying to list it on Booking.com. My previous account got disabled with no reasons why. My only inclination is that the previous owner still has the property listed. 
how do I go about changing ownership or atleast get listed? I’ve been going around in circles for about a month with this and getting no where. 
we have tried contacting the previous owners but he’s not the nicest (as I will put it) and calling up Booking.com just asks me for a booking confirmation. 
Thankyou in advance. 
Sarah