Imperia Structures Limited — Non Payment of Assured Return Cheques and non responsiveness by company employees

I had invested in a virtual space in H2O project of Imperia in 2017. While the first 3 years, the company was very prompt in resolving and paying assured rental cheques during 1st 3 years, there has been huge issues in getting the same (post registry) for 3 more years. The company executives, seniors as well as company landline number are not reachable and no phone calls are answered, when the same get connected. I have got some standard email responses after fiercely following up but then again no one is responding to explain and clear my understanding.
I an really in a mental trauma and wondering why such a good company is harassing it's investors.
I really want my issue to be cleared at the earliest. i would be thankful if you can help in the same.