Hidden charges at possession are a total scam!

Just got possession in March, and Ansal API hit us with so many hidden charges at Ansal Carnation Garden. PLC, EDC, IDC – stuff nobody told me about during booking. Honestly not sure if it's even legal. My budget is totally blown now. Also, the promised amenities are nowhere near complete. Where's the kids play area they showed in the brochure? It's just a muddy patch right now. The construction quality also seems sus, ngl. Cracks already showing in the plaster. Anyone else faced similar issues? What did you do about it? How to fight this?