Shriram Properties / Shriram Shreshta — Fake promises to customer and non-responsive to queries resulting in mental agony

I bought a flat at Shriram Shankari apartments Phase 3.
As per agreement handover was supposed to be done by Dec-2022. But till date handover is not done.
When I used to follow up frequently, their CRM team repeatedly committed to give compensation for delay in handover during time of handover. Suddenly all of a sudden in April 2023, shriram team is saying no compensation will be provided for delay because of extension brought under RERA.

If extension is brought, why should they give fake promises for compensation till March 2023, to keep us silent.

Also, they dont respond to any mails or phone calls even after repeated reminders. For each and every small details, I have to go to the site in person and meet them personally. Their simple reply is that they missed mail or too busy to pick calls.

I am facing lot of mental agony because of this.