This plugin allows you to limit your form to only accept up to certain maximum number of payments only. After the maximum number payments for the form reached, it will unpublish the form so that users cannot make payment for that form anymore.
To use this feature, go to System -> Plugins, find and enable Payment Form - Limit Payments plugin. Now, when you add, edit a form, you will see a new tab called Limit Payments. Put the number you want into Number Payments parameter and the form will only accept that maximum number of payments.
