About my wrong phone number

Hi, I'm Ayten from Kaş Ay Işığı Suit Aparts. I have an issue. Finally I take my first reservation in booking.com. But when I set up my page I wrote my phone number wrong. So when i want to change it system says which option is comply your issue? and i choose my issue. But the system says you must to talk with us. But in Turkey there isn't any booking.com office so i didn't get in touch with anyone. So my question is how can i change my phone number to enter my payment informations.  I want help for it. Thanks a lot for now.

**When i call the number on attecments no one answered my phone.