Pacl — To get refund amount

I Shivanna from Bommalapur, Gundlupet taluk, Chamarajanagar dist, Karnataka... was a pacl agent. I have collected monthly installments from about 25 investors. I have surrendered the pACL Bond certificates of all those investors as the maturation period was completed in 2014. Now the SEBI has taken the control over PACL, it has started the process of refunding from the last year. Since I surrendered the bond certificate to PACL office I haven't got the opportunity to claim the refund for those investors. So I humbly request you to guide me to proceed further to get the claim amount without certificate. But I possess all receipts of the paid amount.
With regards