Stilt parking ownership in co-operative society

I purchased a 2BHK flat from builder in the year Nov 2004 which has a stilt parking allotted for which I paid additional amount. The parking area is clearly shown and mentioned in the registered document. The society refuses to accept this and has clearly mentioned that the stilt parking is a common area belonging to the society. I have sent society office complaint letters in this regard. In Feb 2014 they have given a letter mentioning that the parking space allotted is encroachment to the society and does not accept the allotment done by the builder.

My questions is 1. If I have the right to the parking space, Can I approach the registrar office to file the complain against the society and get back the parking space ownership? 2. If I cannot have the right to space then, Can I approach the consumer court or high court against the builder to refund back the money.