Change of use issue

Sir, Ours is a residential housing society in Pune, consists of 30 flats,registered in 2012. 4 of the flats are rented out for offices by the owner,who was also the landlord. One flat is being used for Panchkarma by owner himself. Promotor issued them NOC for change of use without taking any kind of permission from flat holders just before 15 days of society registration. Conveyance deed issue is lingering in the court for last 3 years.Pl.guide us regarding these points. 1. Can members or society complains or file a case against Promotor for issuing the NOC for change of use without permission of members & asked for cancellation? 2.Can society file a complaint or case to co-op.dept.against these five professionals for not taking NOC from society even after they have got CHANGE OF USE,before society formation? Thanks & Regards