30 Nov, i have 300k post with RPM is 2 it mean i have 600$.
But 1 Dec RPM down to 1.9 with 310k post, so i have 589$
If i receive 600$ for Nov and and Dec will not increase anymore, Do I have to pay back $11 ?
So strange, Right ? 
(BTW can you add category “ask a question” )
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Hi @Anh_Nguyen! We have the category General tool and project questions but for thiis question, you’d be best to use this form.