Neha — Delay in possession - No point of contact and number working (Ajnara Ambrosia)

This is regarding my flat F-2104 in Ajnara Ambrosia, for which I have received fit out letter ( though it was not a possession letter as it mentioned in the subject line). I am trying to reach out to the contact provided to me (Anjali Gaur) from last one month but there is no response. Either the phone is switched off or no one picks up the call. Their base line number is also not reachable. I am residing in Bangalore and its not possible for me to go to Noida to talk to them. Why they have blocked all the accesses of customers. I doubt their intension since they have not received the OC yet but they claim that they can give possession without OC which I believe would be illegal. They keep on giving a new possession date every month and now they are not accessible from last one month.