The billing page within the Partner Portal will only show a proforma invoice. There are no options to pay the invoice available via the Partner Portal
The actual invoice will be sent via our Xero platform and should come from messaging-service@post.xero.com. This should be sent to users who are listed as "Owners" in the partner portal or have been given the "Finance" role. This invoice from Xero will include the total amount payable, including applicable sales taxes. This will also include a link which can be used to pay the invoice.
Unfortunately, the Dropsuite Support team is unable to assist with billing/invoice related issues. If you have questions or concerns related to these topics or would like to update the address to which the Xero invoices are sent, please reach out to revenue_queries@dropsuite.com.