Querry regarding scrap business

Mohammed Fahad (Become CA) (76 Points)

30 August 2020  
one of my client has computer and plastic scrap business.
His Annual T/O is 15L approx.
He supply goods to inter & intra state both
and trasporter demand GST bill and e way bill..
He purchase goods from Unregistered dealer and Recepient not agree to pay GST..

what can I do.. plzz suggest as soon as possible..