Community, anyone faced unexpected costs after booking?

Hidden charges are the biggest scam in Noida real estate, honestly. I'm looking at Radhey Krishna Techno Build Pvt. Ltd. projects in Sector 22 Yamuna Expressway. Brochure mein sab kuch clear nahi hota, yaar. Booking ke baad pata chala ki 'other charges' mein kitna kuch ghusa hua hai – PLC, club membership, even maintenance advance. Mera budget pura hil gaya. Parents bolte the, 'extra 10-15% rakhna,' but yeh toh aur zyada nikla. Did anyone else face this with Radhey Krishna or other builders? How did you manage these sudden expenses? Ab samajh nahi aa raha kaise adjust karu.