How do I contact booking.com via email

Hi there,

I am about to list my property, now in the midst of getting the info completed. I use to get email from booking.com to my emai add ***  but yesterday I encounter problem when I did my continue with registration, there is a message pop up on my laptop screen asking me to check in email inbox to continue registration access but I didnt receive any email in my inbox...

Can you let me know what is the issue here? How can this be resolve?

Is there a private email I can booking.com or landline to call?

Looking forward to your assistance. Thanks.

Br,

Hamada Omer