Pre-launch booking ka sach: Has anyone else been burned?

Been looking for 8 months now and it's getting exhausting. I'm currently in a 2BHK in Sector 82, thinking of upgrading to a 3BHK. Last year, I booked a pre-launch flat with M3M near Dwarka Expressway, thinking early bird discount milega. They promised a certain view and no PLC for specific floors. Ab possession ka time aa raha hai, aur pata chala ki they added some random "infrastructure development charges" jo agreement mein mention nahi tha. Matlab, ₹5-6 lakh extra out of nowhere! Is it worth the premium? Already have a home loan, aur upar se yeh hidden costs. Anyone else faced such a mess with pre-launch bookings in Gurgaon? Kya karun, should I fight or just pay up? It's so frustrating.