Pacl India — getting error message while registering for pacl refund "this pacl number does not exists as per our records"

Address:

vill- Dotma Bazar , p.o/p.s- Dotma dist- kokrajhar state- Assam (B.T.A.D), 783347

I'm writing this on behalf of my uncle (Khublal gupta) who was an investor of pacl. We have seen the public notice through sebi website that sebi is accepting the refund/claim applications from the investors of pacl ltd. When we tried to register for the refund through the portal http://sebipaclrefund.co.in/, it is showing an error that is -"this pacl number does not exists as per our records". We are unable to register our-self in the mentioned portal. We are so much disappointed by this.
We have the pacl registration certificate (Pacl bond) and some of the bills received for the installments paid with us and also some other corresponding aforeside documents, which we have mail to [protected]@sebi.gov.in.
We want to know the possibility of our refund and how long it is going to take?