BPTP — Non payment of penalty. false possession , undue charges.

I booked office space in Centra One building in Gurgaon in2006. after taking 60% payment in 2008 the co gave buyer agreement that possession will be given in 2011. The after lot of calls they gave possession letter in 2018 that u deposit these undue amount than space will be made ready and possession given.
The space is not ready as yet and they are charging maintainance 21000/- month.
Besides this there are so many bunglings in accounts that makes wonder this is company or scammer organisation.