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Generally, there is no way to check the statue about extra required document.9 F/ x8 y# R0 B' k
The only thing is to wait.
# w% s. U( Q6 ?4 [& Ebackground check?? ' e/ U; n8 @- ]$ d( u3 j/ T7 EI am just saying. Maybe you should send email and ask. ! w2 X( ~) m, G" F9 KHave you been requested any extra document?