My account I have deleted my account but it is still there ?! and a reservation for someone?

Clearly then you have not, search 

End my partnership 

In meantime use open close rooms or property snooze.

Hi Puoneh, 

Please follow this link to terminate your listing - https://partner.booking.com/en-us/help/legal-security/terms-local-laws/…

Booking.com publish a list of publicly available support numbers per country on the page I have linked to below, so if for any reason you can't access the extranet or don't have access to the Inbox tab, you will find a list of public support number numbers listed here on the Partner Hub. - https://partner.booking.com/en-gb/help/support-contact/contact/where-yo…