OK, I see!
The "Organization_Verification_P2" is the name of a page (you call it tab). A Page of a Tab Control doesn't provide a member called "Value".
The code needs the name of Tab Control, not the name of the page.
When the Value of the Tab Control = 0 you are in Page 1.Code:Me.The_Name_Of_Tab_Control.Value
To step to the next Page, you have to add 1 to the Value of the Tab Control.
To see the name of the Tab Control, click on the blank space right of the last page to select it first.
Good luck!
John