Issue with a Invoice

I am new to booking.com my first reservation cancelled by the guest but i have recievied the invoice to pay the commission charges i need to solve this issue i am not able to speak to customer service centre to solve the issue. 

BrookAve 3 years ago

Found in the ‘Financial Overview’ section of the ‘Finance’ tab in your extranet.

Use the message option , and include the relevant info.

Please note that finance team is available during business hours, Monday to Friday only.