First, Login to your Promomash Manager account at https://www.promomash.com/login
Then, click on the Accounting icon on the left hand side (if you don't see this icon then you can reach out to us at email@example.com):
Click on the icon for the relative BA "Show Summary Panel"
Then the "Expense Summary" page will appear on the right.
Find the relative event and click on the reject "x" icon
List the reason for rejection (the BA will not receive a notification, this is just for your reference when reviewing under the approvals section)
Find the event in the approvals section, as the status will return to the "Pending Approval"
You can edit the event from the schedule view or return the report to the BA for a revision (from the approvals stage)