Deemed Credit

I m Distributer of company, I received Vat invoice from Super stockist in June and before months . I have stock of near 2.5 lac of goods and near 15000 of VAT credit in books , I have to sale my goods in Under GST regime intrastate. Item was under exice law asper MRP based duty and in GST item under 28%. How I receive reimbursement of CGST and when ? I have all invoices and all returns fullfill