Supertech upcountry levied too much interest

Q: We had booked the villa in Supertech Upcountry in 2010 with DPP and we never got any intimation about the change in plan from 150 sq yards to 125 sq yards.

After a year; we got a demand letter which stated that we had to pay such a huge amount otherwise it will be cancelled. Till then time; it wasnt even approved. At that time Oct 2011; we got the plan changed to Flexi and gave all demands on time.

Now when it's final settlement; builder levied tax of 9+ lakhs which was levied on that one year of no payment(when we didnt had any indication also). After further meetings; they changed it to 5+ because now they levied the tax on considering it as Flexi and on 20% amount for full year. How can they just put tax when even they havent given us allotment letter and it wasn't even approved.

Not only this; they have put extra charges of labour welfare. They are not listening to anything and we are planning to go forward with Customer care. Is anyone else experiencing same issue.

Regards
Meenakshi