Runwal Group — Refund of 8.35 Lacs given for Booking and SDR amount - T5-0607

I had booked 2BHK Flat in Runwal Garden T5-0607 in Feb 2020 by paying 54000 /- Sales Exe took our signs on 2 pages of Application form but neither given us copy of that form where terms and conditions mentioned nor explained anything about cancellation clause & process.

Subsequently I paid 5 Lacs payment in March 2020 along with 2.81 Lacs for Stamp Duty and Registration charges. But due to Covid Pandemic situation registration got delayed and lock down situation created panic situation on income as well as future.

Initially it was told to me that If I cancel booking than you may loss booking amount of 54000 /- and remaining amount will be paid back.

But when I send mail for cancellation request, It was told that you may loss 5 Lacs amount as cancellation charges. Then I had asked It would have been told to us earlier that so much of amount will be deducted as cancellation charges. Where RM explained me that this clause was mentioned in application form, then I had requested to show me that application copy, where I found it was not signed and looks like printout taken on back side later on.

I am following for refund since 9th July 2020 after booking cancellation, but nothing getting firm answer on refund. Everytime getting new promise that we are trying with Head Office. Head Office will clear refund soon, but not getting anything.

As Runwal is not refunding, I wished to go ahead with booked flat and enquired on 5th Oct 2020, where RM told that said flat was sold out.

I don't know how to deal with such a non cooperating Real Estate Developer.
1) How can developer impose any clause which was not signed in application form ?
2) How many days required developer to refund entire amount, even after he sold out cancelled unit ?
3) Can developer sell booked unit without completing cancellation formalities ?