Please note that when you access the Promotions section, the Promotions menu entry gets highlighted, as you can see in the attached screenshot.


However, when you click through the plugin options (Items, Membership, Cart etc.), the Promotions menu entry gets deselected.


Osclass Pay v3.5.4
Delta Theme v1.3.1

@Tango
Yes unfortunately later theme will not recognize you are still "under promotion" as it's different link