Consumer Redressal

I have booked flat in Noida. I have taken some confirmation on mail when construction was going on regarding features in the flat. However, when i visited the flat and found differences as communicated by the builder. Also, i have raised concern over service agreement which is not addressed by the builder. Also, builder has not given provision of window AC and we have been forced to install split ACs and throw away our window ACs. Also, builder has denied to provide club and other facilities at the time of offer of possession and builder has charged club charges from us. Therefore, i need your advise on how should i proceed and get compensation.