Green Card Approved by AOS but NVS sent mail saying that they cancelled the NVC Case

[Nisarg]

Hello Everyone ,

We have filed adjustment of status and our green card was approved and we received green card in 2020 . But NVS is not informed and they have cancelled our Case . We filed a inquiry also stating that our Green Card is approved ,but getting no response .Not sure what to do .
Can anyone help in this regards ?

[newacct]

You were not doing Consular Processing, so you no longer need an NVC case. What's wrong with them canceling it?

[Nisarg]

Yes I am fine with that but since we received cancellation mail ,so got worried . Is it fine to receive this mail right as we already have Green Card ?

Thanks for helping .