Click 
on the toolbar.
If you waived a dues payment by mistake, you can unwaive the payment using the following steps.
Click on the toolbar.
The Appointments for window displays.
In the Client field, type the client's name in "lastname,firstname" format and press Enter, or double-click in the field and locate the client's profile using the Quick Search window.
The client's details display.
Right-click on the client's name and select Edit View/This.
The client's profile displays.
Click Edit.
Click Membership.
The Membership Maintenance window displays.
Select the waived payment.
Click Unwaive.
Click Yes.
The status of the payment changes to Not Billed.
Click Ok.
Click Save.