Refund under gst

CA Darshan Soni (D.P.BARBHAYA & ASSOCIATES)   (150 Points)

05 July 2017  
CLIENT HAVING BUSINESS OF IMITATION ORNAMENTS. ITS INPUT RAW MATERIALS ARE TAXED AT AVG 15% GST . HIS FINAL PRODUCTS SELL AT 3% GST. IS IT SURE THAT HE WILL GET REFUND FOR HIS EXCESS CREDIT?