Xrbia — no position of flat in talegaon

Hi I have purchased my flat in 2016/17 in abode Talegaon project for G1 building and was told will get possession in 2020 March than came covid and was told by year end Dec 2020 as per agreement date now still no update and their number don't connect and they don't even reply to any emails or calls and keeping changing ofc address.
My name is Rocky Dhupar number [protected] email I'd is [protected]@gmail.com