Booking.com Disaster

In good faith and expecting results I recently joined booking.com and posted my holiday property on their site. I received the one booking for two nights this month, but It is virtually impossible to contact them re queries. I was told my account was disabled and suspended for security reasons ?The telephone number they give does not exist. I finally got to chat with one of their '"experts" and asked that my property be removed immediately. I was told to give my Credit Card details and be charged for advice! I have contacted the one booking and advised her of the situation.